Home / 256,318,147.04-353,720,740.86-138,843,475.76

Finding the Fourth Proportional to 256,318,147.04, 353,720,740.86 and 138,843,475.76

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Solution

The fourth proportional to 256,318,147.04, 353,720,740.86 and 138,843,475.76 is: 191,604,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,318,147.04 : 353,720,740.86 = 138,843,475.76 : x
  2. Step 2: Convert to fraction form
    256,318,147.04/353,720,740.86 = 138,843,475.76/x
  3. Step 3: Cross multiply
    256,318,147.04x = 353,720,740.86 × 138,843,475.76
  4. Step 4: Simplify right side
    256,318,147.04x = 49,111,817,109,404,648
  5. Step 5: Solve for x
    x = 49,111,817,109,404,648/256,318,147.04
  6. Step 6: Final answer
    x = 191,604,916.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.