Home / 86,031,812.70-129,047,719.05-43,033,643.10

Finding the Fourth Proportional to 86,031,812.70, 129,047,719.05 and 43,033,643.10

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Solution

The fourth proportional to 86,031,812.70, 129,047,719.05 and 43,033,643.10 is: 64,550,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,031,812.70 : 129,047,719.05 = 43,033,643.10 : x
  2. Step 2: Convert to fraction form
    86,031,812.70/129,047,719.05 = 43,033,643.10/x
  3. Step 3: Cross multiply
    86,031,812.70x = 129,047,719.05 × 43,033,643.10
  4. Step 4: Simplify right side
    86,031,812.70x = 5,553,393,484,466,771
  5. Step 5: Solve for x
    x = 5,553,393,484,466,771/86,031,812.70
  6. Step 6: Final answer
    x = 64,550,464.65

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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.