Home / 774,055,344.80-1,159,490,492.40-391,318,551.20

Finding the Fourth Proportional to 774,055,344.80, 1,159,490,492.40 and 391,318,551.20

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Solution

The fourth proportional to 774,055,344.80, 1,159,490,492.40 and 391,318,551.20 is: 586,172,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,055,344.80 : 1,159,490,492.40 = 391,318,551.20 : x
  2. Step 2: Convert to fraction form
    774,055,344.80/1,159,490,492.40 = 391,318,551.20/x
  3. Step 3: Cross multiply
    774,055,344.80x = 1,159,490,492.40 × 391,318,551.20
  4. Step 4: Simplify right side
    774,055,344.80x = 453,730,139,616,142,656
  5. Step 5: Solve for x
    x = 453,730,139,616,142,656/774,055,344.80
  6. Step 6: Final answer
    x = 586,172,736.44

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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.