Home / 352,339,235.40-528,508,853.10-261,639,971.40

Finding the Fourth Proportional to 352,339,235.40, 528,508,853.10 and 261,639,971.40

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Solution

The fourth proportional to 352,339,235.40, 528,508,853.10 and 261,639,971.40 is: 392,459,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,339,235.40 : 528,508,853.10 = 261,639,971.40 : x
  2. Step 2: Convert to fraction form
    352,339,235.40/528,508,853.10 = 261,639,971.40/x
  3. Step 3: Cross multiply
    352,339,235.40x = 528,508,853.10 × 261,639,971.40
  4. Step 4: Simplify right side
    352,339,235.40x = 138,279,041,209,730,816
  5. Step 5: Solve for x
    x = 138,279,041,209,730,816/352,339,235.40
  6. Step 6: Final answer
    x = 392,459,957.10

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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.