Home / 53,009,436.30-79,514,154.45-28,759,980.30

Finding the Fourth Proportional to 53,009,436.30, 79,514,154.45 and 28,759,980.30

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Solution

The fourth proportional to 53,009,436.30, 79,514,154.45 and 28,759,980.30 is: 43,139,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,009,436.30 : 79,514,154.45 = 28,759,980.30 : x
  2. Step 2: Convert to fraction form
    53,009,436.30/79,514,154.45 = 28,759,980.30/x
  3. Step 3: Cross multiply
    53,009,436.30x = 79,514,154.45 × 28,759,980.30
  4. Step 4: Simplify right side
    53,009,436.30x = 2,286,825,515,553,157.50
  5. Step 5: Solve for x
    x = 2,286,825,515,553,157.50/53,009,436.30
  6. Step 6: Final answer
    x = 43,139,970.45

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Half scale
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Double scale
Find fourth proportional to 53,009,437.30, 79,514,155.95 and 28,759,981.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.