Home / 487,240,015.40-730,860,023.10-372,448,759.40

Finding the Fourth Proportional to 487,240,015.40, 730,860,023.10 and 372,448,759.40

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Solution

The fourth proportional to 487,240,015.40, 730,860,023.10 and 372,448,759.40 is: 558,673,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,240,015.40 : 730,860,023.10 = 372,448,759.40 : x
  2. Step 2: Convert to fraction form
    487,240,015.40/730,860,023.10 = 372,448,759.40/x
  3. Step 3: Cross multiply
    487,240,015.40x = 730,860,023.10 × 372,448,759.40
  4. Step 4: Simplify right side
    487,240,015.40x = 272,207,908,898,650,336
  5. Step 5: Solve for x
    x = 272,207,908,898,650,336/487,240,015.40
  6. Step 6: Final answer
    x = 558,673,139.10

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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.