Home / 387,830,831.20-581,746,246.80-242,712,008.80

Finding the Fourth Proportional to 387,830,831.20, 581,746,246.80 and 242,712,008.80

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Solution

The fourth proportional to 387,830,831.20, 581,746,246.80 and 242,712,008.80 is: 364,068,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,830,831.20 : 581,746,246.80 = 242,712,008.80 : x
  2. Step 2: Convert to fraction form
    387,830,831.20/581,746,246.80 = 242,712,008.80/x
  3. Step 3: Cross multiply
    387,830,831.20x = 581,746,246.80 × 242,712,008.80
  4. Step 4: Simplify right side
    387,830,831.20x = 141,196,800,172,688,560
  5. Step 5: Solve for x
    x = 141,196,800,172,688,560/387,830,831.20
  6. Step 6: Final answer
    x = 364,068,013.20

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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.