Home / 81,708,507.04-112,757,712.18-45,039,690.40

Finding the Fourth Proportional to 81,708,507.04, 112,757,712.18 and 45,039,690.40

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Solution

The fourth proportional to 81,708,507.04, 112,757,712.18 and 45,039,690.40 is: 62,154,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,708,507.04 : 112,757,712.18 = 45,039,690.40 : x
  2. Step 2: Convert to fraction form
    81,708,507.04/112,757,712.18 = 45,039,690.40/x
  3. Step 3: Cross multiply
    81,708,507.04x = 112,757,712.18 × 45,039,690.40
  4. Step 4: Simplify right side
    81,708,507.04x = 5,078,572,446,799,509
  5. Step 5: Solve for x
    x = 5,078,572,446,799,509/81,708,507.04
  6. Step 6: Final answer
    x = 62,154,757.57

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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.