Home / 65,123,743.95-89,870,943.49-35,756,978.63

Finding the Fourth Proportional to 65,123,743.95, 89,870,943.49 and 35,756,978.63

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Solution

The fourth proportional to 65,123,743.95, 89,870,943.49 and 35,756,978.63 is: 49,344,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,123,743.95 : 89,870,943.49 = 35,756,978.63 : x
  2. Step 2: Convert to fraction form
    65,123,743.95/89,870,943.49 = 35,756,978.63/x
  3. Step 3: Cross multiply
    65,123,743.95x = 89,870,943.49 × 35,756,978.63
  4. Step 4: Simplify right side
    65,123,743.95x = 3,213,513,405,291,120.50
  5. Step 5: Solve for x
    x = 3,213,513,405,291,120.50/65,123,743.95
  6. Step 6: Final answer
    x = 49,344,727.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.