Home / 92,675,896.80-139,013,845.20-71,218,802.40

Finding the Fourth Proportional to 92,675,896.80, 139,013,845.20 and 71,218,802.40

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Solution

The fourth proportional to 92,675,896.80, 139,013,845.20 and 71,218,802.40 is: 106,828,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,675,896.80 : 139,013,845.20 = 71,218,802.40 : x
  2. Step 2: Convert to fraction form
    92,675,896.80/139,013,845.20 = 71,218,802.40/x
  3. Step 3: Cross multiply
    92,675,896.80x = 139,013,845.20 × 71,218,802.40
  4. Step 4: Simplify right side
    92,675,896.80x = 9,900,399,572,162,988
  5. Step 5: Solve for x
    x = 9,900,399,572,162,988/92,675,896.80
  6. Step 6: Final answer
    x = 106,828,203.60

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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.