Home / 130,897,737.83-180,639,425.72-72,159,113.63

Finding the Fourth Proportional to 130,897,737.83, 180,639,425.72 and 72,159,113.63

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Solution

The fourth proportional to 130,897,737.83, 180,639,425.72 and 72,159,113.63 is: 99,579,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,897,737.83 : 180,639,425.72 = 72,159,113.63 : x
  2. Step 2: Convert to fraction form
    130,897,737.83/180,639,425.72 = 72,159,113.63/x
  3. Step 3: Cross multiply
    130,897,737.83x = 180,639,425.72 × 72,159,113.63
  4. Step 4: Simplify right side
    130,897,737.83x = 13,034,780,846,587,424
  5. Step 5: Solve for x
    x = 13,034,780,846,587,424/130,897,737.83
  6. Step 6: Final answer
    x = 99,579,878.63

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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.