Home / 12,947,639,435.87-17,867,553,818.45-7,232,005,193.35

Finding the Fourth Proportional to 12,947,639,435.87, 17,867,553,818.45 and 7,232,005,193.35

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Solution

The fourth proportional to 12,947,639,435.87, 17,867,553,818.45 and 7,232,005,193.35 is: 9,980,061,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,639,435.87 : 17,867,553,818.45 = 7,232,005,193.35 : x
  2. Step 2: Convert to fraction form
    12,947,639,435.87/17,867,553,818.45 = 7,232,005,193.35/x
  3. Step 3: Cross multiply
    12,947,639,435.87x = 17,867,553,818.45 × 7,232,005,193.35
  4. Step 4: Simplify right side
    12,947,639,435.87x = 129,218,242,007,365,533,696
  5. Step 5: Solve for x
    x = 129,218,242,007,365,533,696/12,947,639,435.87
  6. Step 6: Final answer
    x = 9,980,061,821.11

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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.