Home / 291,329,895.90-436,868,872.65-145,707,188.70

Finding the Fourth Proportional to 291,329,895.90, 436,868,872.65 and 145,707,188.70

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Solution

The fourth proportional to 291,329,895.90, 436,868,872.65 and 145,707,188.70 is: 218,497,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,329,895.90 : 436,868,872.65 = 145,707,188.70 : x
  2. Step 2: Convert to fraction form
    291,329,895.90/436,868,872.65 = 145,707,188.70/x
  3. Step 3: Cross multiply
    291,329,895.90x = 436,868,872.65 × 145,707,188.70
  4. Step 4: Simplify right side
    291,329,895.90x = 63,654,935,264,369,808
  5. Step 5: Solve for x
    x = 63,654,935,264,369,808/291,329,895.90
  6. Step 6: Final answer
    x = 218,497,779.19

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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.