Home / 156,914,831.44-216,544,459.28-86,358,565.28

Finding the Fourth Proportional to 156,914,831.44, 216,544,459.28 and 86,358,565.28

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Solution

The fourth proportional to 156,914,831.44, 216,544,459.28 and 86,358,565.28 is: 119,175,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,914,831.44 : 216,544,459.28 = 86,358,565.28 : x
  2. Step 2: Convert to fraction form
    156,914,831.44/216,544,459.28 = 86,358,565.28/x
  3. Step 3: Cross multiply
    156,914,831.44x = 216,544,459.28 × 86,358,565.28
  4. Step 4: Simplify right side
    156,914,831.44x = 18,700,468,822,754,184
  5. Step 5: Solve for x
    x = 18,700,468,822,754,184/156,914,831.44
  6. Step 6: Final answer
    x = 119,175,916.33

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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.