Home / 805,202,218.40-1,207,803,327.60-417,781,729.40

Finding the Fourth Proportional to 805,202,218.40, 1,207,803,327.60 and 417,781,729.40

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Solution

The fourth proportional to 805,202,218.40, 1,207,803,327.60 and 417,781,729.40 is: 626,672,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,202,218.40 : 1,207,803,327.60 = 417,781,729.40 : x
  2. Step 2: Convert to fraction form
    805,202,218.40/1,207,803,327.60 = 417,781,729.40/x
  3. Step 3: Cross multiply
    805,202,218.40x = 1,207,803,327.60 × 417,781,729.40
  4. Step 4: Simplify right side
    805,202,218.40x = 504,598,162,979,802,688
  5. Step 5: Solve for x
    x = 504,598,162,979,802,688/805,202,218.40
  6. Step 6: Final answer
    x = 626,672,594.10

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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.