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Finding the Fourth Proportional to 253,721,461.02, 380,583,873.05 and 98,292,531

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Solution

The fourth proportional to 253,721,461.02, 380,583,873.05 and 98,292,531 is: 147,439,447.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,721,461.02 : 380,583,873.05 = 98,292,531 : x
  2. Step 2: Convert to fraction form
    253,721,461.02/380,583,873.05 = 98,292,531/x
  3. Step 3: Cross multiply
    253,721,461.02x = 380,583,873.05 × 98,292,531
  4. Step 4: Simplify right side
    253,721,461.02x = 37,408,552,139,867,192
  5. Step 5: Solve for x
    x = 37,408,552,139,867,192/253,721,461.02
  6. Step 6: Final answer
    x = 147,439,447.93

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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.