Home / 385,746,319.04-532,329,515.72-209,534,454.32

Finding the Fourth Proportional to 385,746,319.04, 532,329,515.72 and 209,534,454.32

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Solution

The fourth proportional to 385,746,319.04, 532,329,515.72 and 209,534,454.32 is: 289,157,327.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,746,319.04 : 532,329,515.72 = 209,534,454.32 : x
  2. Step 2: Convert to fraction form
    385,746,319.04/532,329,515.72 = 209,534,454.32/x
  3. Step 3: Cross multiply
    385,746,319.04x = 532,329,515.72 × 209,534,454.32
  4. Step 4: Simplify right side
    385,746,319.04x = 111,541,374,594,820,064
  5. Step 5: Solve for x
    x = 111,541,374,594,820,064/385,746,319.04
  6. Step 6: Final answer
    x = 289,157,327.21

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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.