Home / 145,173,246.60-217,778,532.30-72,427,211.40

Finding the Fourth Proportional to 145,173,246.60, 217,778,532.30 and 72,427,211.40

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Solution

The fourth proportional to 145,173,246.60, 217,778,532.30 and 72,427,211.40 is: 108,650,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,173,246.60 : 217,778,532.30 = 72,427,211.40 : x
  2. Step 2: Convert to fraction form
    145,173,246.60/217,778,532.30 = 72,427,211.40/x
  3. Step 3: Cross multiply
    145,173,246.60x = 217,778,532.30 × 72,427,211.40
  4. Step 4: Simplify right side
    145,173,246.60x = 15,773,091,797,273,830
  5. Step 5: Solve for x
    x = 15,773,091,797,273,830/145,173,246.60
  6. Step 6: Final answer
    x = 108,650,127.81

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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.