Home / 1,318,475,748.72-1,975,127,849.10-764,614,587

Finding the Fourth Proportional to 1,318,475,748.72, 1,975,127,849.10 and 764,614,587

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Solution

The fourth proportional to 1,318,475,748.72, 1,975,127,849.10 and 764,614,587 is: 1,145,422,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,475,748.72 : 1,975,127,849.10 = 764,614,587 : x
  2. Step 2: Convert to fraction form
    1,318,475,748.72/1,975,127,849.10 = 764,614,587/x
  3. Step 3: Cross multiply
    1,318,475,748.72x = 1,975,127,849.10 × 764,614,587
  4. Step 4: Simplify right side
    1,318,475,748.72x = 1,510,211,564,611,794,688
  5. Step 5: Solve for x
    x = 1,510,211,564,611,794,688/1,318,475,748.72
  6. Step 6: Final answer
    x = 1,145,422,330.35

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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.