Home / 700,518,755.80-966,720,254.92-382,979,685.91

Finding the Fourth Proportional to 700,518,755.80, 966,720,254.92 and 382,979,685.91

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Solution

The fourth proportional to 700,518,755.80, 966,720,254.92 and 382,979,685.91 is: 528,514,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,518,755.80 : 966,720,254.92 = 382,979,685.91 : x
  2. Step 2: Convert to fraction form
    700,518,755.80/966,720,254.92 = 382,979,685.91/x
  3. Step 3: Cross multiply
    700,518,755.80x = 966,720,254.92 × 382,979,685.91
  4. Step 4: Simplify right side
    700,518,755.80x = 370,234,219,590,676,736
  5. Step 5: Solve for x
    x = 370,234,219,590,676,736/700,518,755.80
  6. Step 6: Final answer
    x = 528,514,356.72

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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.