Home / 1,128,520,050.48-1,557,216,646.20-626,660,600.88

Finding the Fourth Proportional to 1,128,520,050.48, 1,557,216,646.20 and 626,660,600.88

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Solution

The fourth proportional to 1,128,520,050.48, 1,557,216,646.20 and 626,660,600.88 is: 864,713,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,520,050.48 : 1,557,216,646.20 = 626,660,600.88 : x
  2. Step 2: Convert to fraction form
    1,128,520,050.48/1,557,216,646.20 = 626,660,600.88/x
  3. Step 3: Cross multiply
    1,128,520,050.48x = 1,557,216,646.20 × 626,660,600.88
  4. Step 4: Simplify right side
    1,128,520,050.48x = 975,846,319,208,030,336
  5. Step 5: Solve for x
    x = 975,846,319,208,030,336/1,128,520,050.48
  6. Step 6: Final answer
    x = 864,713,319.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.