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Finding the Fourth Proportional to 866,799,334.80, 1,300,199,002.20 and 556,862,943.60

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Solution

The fourth proportional to 866,799,334.80, 1,300,199,002.20 and 556,862,943.60 is: 835,294,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,799,334.80 : 1,300,199,002.20 = 556,862,943.60 : x
  2. Step 2: Convert to fraction form
    866,799,334.80/1,300,199,002.20 = 556,862,943.60/x
  3. Step 3: Cross multiply
    866,799,334.80x = 1,300,199,002.20 × 556,862,943.60
  4. Step 4: Simplify right side
    866,799,334.80x = 724,032,643,630,874,880
  5. Step 5: Solve for x
    x = 724,032,643,630,874,880/866,799,334.80
  6. Step 6: Final answer
    x = 835,294,415.40

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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.