Home / 83,291,446.40-124,937,169.60-42,980,662.40

Finding the Fourth Proportional to 83,291,446.40, 124,937,169.60 and 42,980,662.40

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Solution

The fourth proportional to 83,291,446.40, 124,937,169.60 and 42,980,662.40 is: 64,470,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,291,446.40 : 124,937,169.60 = 42,980,662.40 : x
  2. Step 2: Convert to fraction form
    83,291,446.40/124,937,169.60 = 42,980,662.40/x
  3. Step 3: Cross multiply
    83,291,446.40x = 124,937,169.60 × 42,980,662.40
  4. Step 4: Simplify right side
    83,291,446.40x = 5,369,882,307,789,143
  5. Step 5: Solve for x
    x = 5,369,882,307,789,143/83,291,446.40
  6. Step 6: Final answer
    x = 64,470,993.60

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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.