Home / 102,779,313-154,209,320.19-45,231,215.82

Finding the Fourth Proportional to 102,779,313, 154,209,320.19 and 45,231,215.82

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Solution

The fourth proportional to 102,779,313, 154,209,320.19 and 45,231,215.82 is: 67,864,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,779,313 : 154,209,320.19 = 45,231,215.82 : x
  2. Step 2: Convert to fraction form
    102,779,313/154,209,320.19 = 45,231,215.82/x
  3. Step 3: Cross multiply
    102,779,313x = 154,209,320.19 × 45,231,215.82
  4. Step 4: Simplify right side
    102,779,313x = 6,975,075,042,969,373
  5. Step 5: Solve for x
    x = 6,975,075,042,969,373/102,779,313
  6. Step 6: Final answer
    x = 67,864,581.30

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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.