Home / 291,260,039.40-436,890,059.10-75,849,287.40

Finding the Fourth Proportional to 291,260,039.40, 436,890,059.10 and 75,849,287.40

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Solution

The fourth proportional to 291,260,039.40, 436,890,059.10 and 75,849,287.40 is: 113,773,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,260,039.40 : 436,890,059.10 = 75,849,287.40 : x
  2. Step 2: Convert to fraction form
    291,260,039.40/436,890,059.10 = 75,849,287.40/x
  3. Step 3: Cross multiply
    291,260,039.40x = 436,890,059.10 × 75,849,287.40
  4. Step 4: Simplify right side
    291,260,039.40x = 33,137,799,654,878,888
  5. Step 5: Solve for x
    x = 33,137,799,654,878,888/291,260,039.40
  6. Step 6: Final answer
    x = 113,773,931.10

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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.