Home / 151,345,461.72-208,856,733.48-81,730,836.90

Finding the Fourth Proportional to 151,345,461.72, 208,856,733.48 and 81,730,836.90

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Solution

The fourth proportional to 151,345,461.72, 208,856,733.48 and 81,730,836.90 is: 112,788,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,345,461.72 : 208,856,733.48 = 81,730,836.90 : x
  2. Step 2: Convert to fraction form
    151,345,461.72/208,856,733.48 = 81,730,836.90/x
  3. Step 3: Cross multiply
    151,345,461.72x = 208,856,733.48 × 81,730,836.90
  4. Step 4: Simplify right side
    151,345,461.72x = 17,070,035,619,520,650
  5. Step 5: Solve for x
    x = 17,070,035,619,520,650/151,345,461.72
  6. Step 6: Final answer
    x = 112,788,552.93

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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.