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Finding the Fourth Proportional to 898,705,941.80, 1,348,058,912.70 and 745,524,962.60

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Solution

The fourth proportional to 898,705,941.80, 1,348,058,912.70 and 745,524,962.60 is: 1,118,287,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,705,941.80 : 1,348,058,912.70 = 745,524,962.60 : x
  2. Step 2: Convert to fraction form
    898,705,941.80/1,348,058,912.70 = 745,524,962.60/x
  3. Step 3: Cross multiply
    898,705,941.80x = 1,348,058,912.70 × 745,524,962.60
  4. Step 4: Simplify right side
    898,705,941.80x = 1,005,011,570,473,264,256
  5. Step 5: Solve for x
    x = 1,005,011,570,473,264,256/898,705,941.80
  6. Step 6: Final answer
    x = 1,118,287,443.90

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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.