Home / 862,300,937.60-1,293,640,363.20-425,810,729.60

Finding the Fourth Proportional to 862,300,937.60, 1,293,640,363.20 and 425,810,729.60

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Solution

The fourth proportional to 862,300,937.60, 1,293,640,363.20 and 425,810,729.60 is: 638,809,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,300,937.60 : 1,293,640,363.20 = 425,810,729.60 : x
  2. Step 2: Convert to fraction form
    862,300,937.60/1,293,640,363.20 = 425,810,729.60/x
  3. Step 3: Cross multiply
    862,300,937.60x = 1,293,640,363.20 × 425,810,729.60
  4. Step 4: Simplify right side
    862,300,937.60x = 550,845,946,894,201,024
  5. Step 5: Solve for x
    x = 550,845,946,894,201,024/862,300,937.60
  6. Step 6: Final answer
    x = 638,809,402.70

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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.