Home / 84,564,246.60-126,846,369.90-72,234,815.40

Finding the Fourth Proportional to 84,564,246.60, 126,846,369.90 and 72,234,815.40

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Solution

The fourth proportional to 84,564,246.60, 126,846,369.90 and 72,234,815.40 is: 108,352,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,564,246.60 : 126,846,369.90 = 72,234,815.40 : x
  2. Step 2: Convert to fraction form
    84,564,246.60/126,846,369.90 = 72,234,815.40/x
  3. Step 3: Cross multiply
    84,564,246.60x = 126,846,369.90 × 72,234,815.40
  4. Step 4: Simplify right side
    84,564,246.60x = 9,162,724,113,886,618
  5. Step 5: Solve for x
    x = 9,162,724,113,886,618/84,564,246.60
  6. Step 6: Final answer
    x = 108,352,223.10

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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.