Home / 87,220,251.40-130,578,434.70-53,208,027.40

Finding the Fourth Proportional to 87,220,251.40, 130,578,434.70 and 53,208,027.40

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Solution

The fourth proportional to 87,220,251.40, 130,578,434.70 and 53,208,027.40 is: 79,658,345.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,220,251.40 : 130,578,434.70 = 53,208,027.40 : x
  2. Step 2: Convert to fraction form
    87,220,251.40/130,578,434.70 = 53,208,027.40/x
  3. Step 3: Cross multiply
    87,220,251.40x = 130,578,434.70 × 53,208,027.40
  4. Step 4: Simplify right side
    87,220,251.40x = 6,947,820,931,366,711
  5. Step 5: Solve for x
    x = 6,947,820,931,366,711/87,220,251.40
  6. Step 6: Final answer
    x = 79,658,345.62

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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.