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Finding the Fourth Proportional to 869,879,334.80, 1,304,819,002.20 and 482,895,808.40

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Solution

The fourth proportional to 869,879,334.80, 1,304,819,002.20 and 482,895,808.40 is: 724,343,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,879,334.80 : 1,304,819,002.20 = 482,895,808.40 : x
  2. Step 2: Convert to fraction form
    869,879,334.80/1,304,819,002.20 = 482,895,808.40/x
  3. Step 3: Cross multiply
    869,879,334.80x = 1,304,819,002.20 × 482,895,808.40
  4. Step 4: Simplify right side
    869,879,334.80x = 630,091,626,883,050,368
  5. Step 5: Solve for x
    x = 630,091,626,883,050,368/869,879,334.80
  6. Step 6: Final answer
    x = 724,343,712.60

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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.