Home / 256,317,731.48-353,720,167.90-138,843,061.68

Finding the Fourth Proportional to 256,317,731.48, 353,720,167.90 and 138,843,061.68

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Solution

The fourth proportional to 256,317,731.48, 353,720,167.90 and 138,843,061.68 is: 191,604,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,317,731.48 : 353,720,167.90 = 138,843,061.68 : x
  2. Step 2: Convert to fraction form
    256,317,731.48/353,720,167.90 = 138,843,061.68/x
  3. Step 3: Cross multiply
    256,317,731.48x = 353,720,167.90 × 138,843,061.68
  4. Step 4: Simplify right side
    256,317,731.48x = 49,111,591,089,199,656
  5. Step 5: Solve for x
    x = 49,111,591,089,199,656/256,317,731.48
  6. Step 6: Final answer
    x = 191,604,345.14

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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.