Home / 91,806,946.70-137,710,420.05-71,001,031.55

Finding the Fourth Proportional to 91,806,946.70, 137,710,420.05 and 71,001,031.55

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Solution

The fourth proportional to 91,806,946.70, 137,710,420.05 and 71,001,031.55 is: 106,501,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,806,946.70 : 137,710,420.05 = 71,001,031.55 : x
  2. Step 2: Convert to fraction form
    91,806,946.70/137,710,420.05 = 71,001,031.55/x
  3. Step 3: Cross multiply
    91,806,946.70x = 137,710,420.05 × 71,001,031.55
  4. Step 4: Simplify right side
    91,806,946.70x = 9,777,581,878,733,804
  5. Step 5: Solve for x
    x = 9,777,581,878,733,804/91,806,946.70
  6. Step 6: Final answer
    x = 106,501,547.33

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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.