Home / 78,572,233.38-108,421,389.84-45,542,843.10

Finding the Fourth Proportional to 78,572,233.38, 108,421,389.84 and 45,542,843.10

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Solution

The fourth proportional to 78,572,233.38, 108,421,389.84 and 45,542,843.10 is: 62,844,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,572,233.38 : 108,421,389.84 = 45,542,843.10 : x
  2. Step 2: Convert to fraction form
    78,572,233.38/108,421,389.84 = 45,542,843.10/x
  3. Step 3: Cross multiply
    78,572,233.38x = 108,421,389.84 × 45,542,843.10
  4. Step 4: Simplify right side
    78,572,233.38x = 4,937,818,346,167,054
  5. Step 5: Solve for x
    x = 4,937,818,346,167,054/78,572,233.38
  6. Step 6: Final answer
    x = 62,844,317.05

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1.5x scale

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.