Home / 138,672,030.30-208,008,045.45-98,361,246.30

Finding the Fourth Proportional to 138,672,030.30, 208,008,045.45 and 98,361,246.30

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Solution

The fourth proportional to 138,672,030.30, 208,008,045.45 and 98,361,246.30 is: 147,541,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,672,030.30 : 208,008,045.45 = 98,361,246.30 : x
  2. Step 2: Convert to fraction form
    138,672,030.30/208,008,045.45 = 98,361,246.30/x
  3. Step 3: Cross multiply
    138,672,030.30x = 208,008,045.45 × 98,361,246.30
  4. Step 4: Simplify right side
    138,672,030.30x = 20,459,930,590,889,044
  5. Step 5: Solve for x
    x = 20,459,930,590,889,044/138,672,030.30
  6. Step 6: Final answer
    x = 147,541,869.45

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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.