Home / 208,088,901.30-312,038,873.55-78,653,493.30

Finding the Fourth Proportional to 208,088,901.30, 312,038,873.55 and 78,653,493.30

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Solution

The fourth proportional to 208,088,901.30, 312,038,873.55 and 78,653,493.30 is: 117,944,528.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,088,901.30 : 312,038,873.55 = 78,653,493.30 : x
  2. Step 2: Convert to fraction form
    208,088,901.30/312,038,873.55 = 78,653,493.30/x
  3. Step 3: Cross multiply
    208,088,901.30x = 312,038,873.55 × 78,653,493.30
  4. Step 4: Simplify right side
    208,088,901.30x = 24,542,947,450,104,472
  5. Step 5: Solve for x
    x = 24,542,947,450,104,472/208,088,901.30
  6. Step 6: Final answer
    x = 117,944,528.98

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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.