Home / 712,575,812.20-1,068,863,718.30-440,478,020.20

Finding the Fourth Proportional to 712,575,812.20, 1,068,863,718.30 and 440,478,020.20

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Solution

The fourth proportional to 712,575,812.20, 1,068,863,718.30 and 440,478,020.20 is: 660,717,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,575,812.20 : 1,068,863,718.30 = 440,478,020.20 : x
  2. Step 2: Convert to fraction form
    712,575,812.20/1,068,863,718.30 = 440,478,020.20/x
  3. Step 3: Cross multiply
    712,575,812.20x = 1,068,863,718.30 × 440,478,020.20
  4. Step 4: Simplify right side
    712,575,812.20x = 470,810,974,500,394,496
  5. Step 5: Solve for x
    x = 470,810,974,500,394,496/712,575,812.20
  6. Step 6: Final answer
    x = 660,717,030.30

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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.