Home / 407,173,409.40-610,760,114.10-213,009,799.80

Finding the Fourth Proportional to 407,173,409.40, 610,760,114.10 and 213,009,799.80

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Solution

The fourth proportional to 407,173,409.40, 610,760,114.10 and 213,009,799.80 is: 319,514,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,173,409.40 : 610,760,114.10 = 213,009,799.80 : x
  2. Step 2: Convert to fraction form
    407,173,409.40/610,760,114.10 = 213,009,799.80/x
  3. Step 3: Cross multiply
    407,173,409.40x = 610,760,114.10 × 213,009,799.80
  4. Step 4: Simplify right side
    407,173,409.40x = 130,097,889,630,266,176
  5. Step 5: Solve for x
    x = 130,097,889,630,266,176/407,173,409.40
  6. Step 6: Final answer
    x = 319,514,699.70

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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.