Home / 291,329,612.40-436,868,447.40-145,706,905.20

Finding the Fourth Proportional to 291,329,612.40, 436,868,447.40 and 145,706,905.20

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Solution

The fourth proportional to 291,329,612.40, 436,868,447.40 and 145,706,905.20 is: 218,497,354.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,329,612.40 : 436,868,447.40 = 145,706,905.20 : x
  2. Step 2: Convert to fraction form
    291,329,612.40/436,868,447.40 = 145,706,905.20/x
  3. Step 3: Cross multiply
    291,329,612.40x = 436,868,447.40 × 145,706,905.20
  4. Step 4: Simplify right side
    291,329,612.40x = 63,654,749,450,182,976
  5. Step 5: Solve for x
    x = 63,654,749,450,182,976/291,329,612.40
  6. Step 6: Final answer
    x = 218,497,354.00

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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.