Home / 752,408,503.88-1,038,326,140.88-417,880,965.72

Finding the Fourth Proportional to 752,408,503.88, 1,038,326,140.88 and 417,880,965.72

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Solution

The fourth proportional to 752,408,503.88, 1,038,326,140.88 and 417,880,965.72 is: 576,677,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,408,503.88 : 1,038,326,140.88 = 417,880,965.72 : x
  2. Step 2: Convert to fraction form
    752,408,503.88/1,038,326,140.88 = 417,880,965.72/x
  3. Step 3: Cross multiply
    752,408,503.88x = 1,038,326,140.88 × 417,880,965.72
  4. Step 4: Simplify right side
    752,408,503.88x = 433,896,730,481,165,824
  5. Step 5: Solve for x
    x = 433,896,730,481,165,824/752,408,503.88
  6. Step 6: Final answer
    x = 576,677,068.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.