Home / 12,947,639,430.87-17,867,553,811.55-7,232,005,188.35

Finding the Fourth Proportional to 12,947,639,430.87, 17,867,553,811.55 and 7,232,005,188.35

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Solution

The fourth proportional to 12,947,639,430.87, 17,867,553,811.55 and 7,232,005,188.35 is: 9,980,061,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,639,430.87 : 17,867,553,811.55 = 7,232,005,188.35 : x
  2. Step 2: Convert to fraction form
    12,947,639,430.87/17,867,553,811.55 = 7,232,005,188.35/x
  3. Step 3: Cross multiply
    12,947,639,430.87x = 17,867,553,811.55 × 7,232,005,188.35
  4. Step 4: Simplify right side
    12,947,639,430.87x = 129,218,241,868,126,912,512
  5. Step 5: Solve for x
    x = 129,218,241,868,126,912,512/12,947,639,430.87
  6. Step 6: Final answer
    x = 9,980,061,814.21

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Double scale
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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.