Home / 805,202,205.40-1,207,803,308.10-417,781,716.40

Finding the Fourth Proportional to 805,202,205.40, 1,207,803,308.10 and 417,781,716.40

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Solution

The fourth proportional to 805,202,205.40, 1,207,803,308.10 and 417,781,716.40 is: 626,672,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,202,205.40 : 1,207,803,308.10 = 417,781,716.40 : x
  2. Step 2: Convert to fraction form
    805,202,205.40/1,207,803,308.10 = 417,781,716.40/x
  3. Step 3: Cross multiply
    805,202,205.40x = 1,207,803,308.10 × 417,781,716.40
  4. Step 4: Simplify right side
    805,202,205.40x = 504,598,139,131,615,936
  5. Step 5: Solve for x
    x = 504,598,139,131,615,936/805,202,205.40
  6. Step 6: Final answer
    x = 626,672,574.60

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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.