Home / 253,187,778.56-379,937,602.56-99,807,733.76

Finding the Fourth Proportional to 253,187,778.56, 379,937,602.56 and 99,807,733.76

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Solution

The fourth proportional to 253,187,778.56, 379,937,602.56 and 99,807,733.76 is: 149,773,070.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,187,778.56 : 379,937,602.56 = 99,807,733.76 : x
  2. Step 2: Convert to fraction form
    253,187,778.56/379,937,602.56 = 99,807,733.76/x
  3. Step 3: Cross multiply
    253,187,778.56x = 379,937,602.56 × 99,807,733.76
  4. Step 4: Simplify right side
    253,187,778.56x = 37,920,711,081,721,176
  5. Step 5: Solve for x
    x = 37,920,711,081,721,176/253,187,778.56
  6. Step 6: Final answer
    x = 149,773,070.79

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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.