Home / 767,668,507.60-1,149,235,279.80-509,175,605.20

Finding the Fourth Proportional to 767,668,507.60, 1,149,235,279.80 and 509,175,605.20

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Solution

The fourth proportional to 767,668,507.60, 1,149,235,279.80 and 509,175,605.20 is: 762,259,443.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,668,507.60 : 1,149,235,279.80 = 509,175,605.20 : x
  2. Step 2: Convert to fraction form
    767,668,507.60/1,149,235,279.80 = 509,175,605.20/x
  3. Step 3: Cross multiply
    767,668,507.60x = 1,149,235,279.80 × 509,175,605.20
  4. Step 4: Simplify right side
    767,668,507.60x = 585,162,569,109,356,288
  5. Step 5: Solve for x
    x = 585,162,569,109,356,288/767,668,507.60
  6. Step 6: Final answer
    x = 762,259,443.13

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1.5x scale

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.