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Finding the Fourth Proportional to 357,696,012.90, 536,544,019.35 and 266,996,748.90

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Solution

The fourth proportional to 357,696,012.90, 536,544,019.35 and 266,996,748.90 is: 400,495,123.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,696,012.90 : 536,544,019.35 = 266,996,748.90 : x
  2. Step 2: Convert to fraction form
    357,696,012.90/536,544,019.35 = 266,996,748.90/x
  3. Step 3: Cross multiply
    357,696,012.90x = 536,544,019.35 × 266,996,748.90
  4. Step 4: Simplify right side
    357,696,012.90x = 143,255,508,808,188,704
  5. Step 5: Solve for x
    x = 143,255,508,808,188,704/357,696,012.90
  6. Step 6: Final answer
    x = 400,495,123.35

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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.