Home / 210,581,709,194.68-315,861,438,947.06-69,072,490,753.72

Finding the Fourth Proportional to 210,581,709,194.68, 315,861,438,947.06 and 69,072,490,753.72

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Solution

The fourth proportional to 210,581,709,194.68, 315,861,438,947.06 and 69,072,490,753.72 is: 103,605,087,092.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,581,709,194.68 : 315,861,438,947.06 = 69,072,490,753.72 : x
  2. Step 2: Convert to fraction form
    210,581,709,194.68/315,861,438,947.06 = 69,072,490,753.72/x
  3. Step 3: Cross multiply
    210,581,709,194.68x = 315,861,438,947.06 × 69,072,490,753.72
  4. Step 4: Simplify right side
    210,581,709,194.68x = 21,817,336,321,127,498,121,216
  5. Step 5: Solve for x
    x = 21,817,336,321,127,498,121,216/210,581,709,194.68
  6. Step 6: Final answer
    x = 103,605,087,092.15

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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.