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Finding the Fourth Proportional to 978,241,271.92, 1,349,978,826.08 and 532,207,834.88

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Solution

The fourth proportional to 978,241,271.92, 1,349,978,826.08 and 532,207,834.88 is: 734,450,006.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,241,271.92 : 1,349,978,826.08 = 532,207,834.88 : x
  2. Step 2: Convert to fraction form
    978,241,271.92/1,349,978,826.08 = 532,207,834.88/x
  3. Step 3: Cross multiply
    978,241,271.92x = 1,349,978,826.08 × 532,207,834.88
  4. Step 4: Simplify right side
    978,241,271.92x = 718,469,308,161,880,832
  5. Step 5: Solve for x
    x = 718,469,308,161,880,832/978,241,271.92
  6. Step 6: Final answer
    x = 734,450,006.13

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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.