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Finding the Fourth Proportional to 577,369,405.80, 866,054,108.70 and 270,692,519.40

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Solution

The fourth proportional to 577,369,405.80, 866,054,108.70 and 270,692,519.40 is: 406,038,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,369,405.80 : 866,054,108.70 = 270,692,519.40 : x
  2. Step 2: Convert to fraction form
    577,369,405.80/866,054,108.70 = 270,692,519.40/x
  3. Step 3: Cross multiply
    577,369,405.80x = 866,054,108.70 × 270,692,519.40
  4. Step 4: Simplify right side
    577,369,405.80x = 234,434,368,620,724,448
  5. Step 5: Solve for x
    x = 234,434,368,620,724,448/577,369,405.80
  6. Step 6: Final answer
    x = 406,038,779.10

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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.