Home / 129,909,807.97-179,274,017.30-70,369,981.38

Finding the Fourth Proportional to 129,909,807.97, 179,274,017.30 and 70,369,981.38

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Solution

The fourth proportional to 129,909,807.97, 179,274,017.30 and 70,369,981.38 is: 97,109,752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,909,807.97 : 179,274,017.30 = 70,369,981.38 : x
  2. Step 2: Convert to fraction form
    129,909,807.97/179,274,017.30 = 70,369,981.38/x
  3. Step 3: Cross multiply
    129,909,807.97x = 179,274,017.30 × 70,369,981.38
  4. Step 4: Simplify right side
    129,909,807.97x = 12,615,509,258,782,650
  5. Step 5: Solve for x
    x = 12,615,509,258,782,650/129,909,807.97
  6. Step 6: Final answer
    x = 97,109,752.19

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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.