Home / 256,607,998.80-384,911,998.20-74,873,547.60

Finding the Fourth Proportional to 256,607,998.80, 384,911,998.20 and 74,873,547.60

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Solution

The fourth proportional to 256,607,998.80, 384,911,998.20 and 74,873,547.60 is: 112,310,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607,998.80 : 384,911,998.20 = 74,873,547.60 : x
  2. Step 2: Convert to fraction form
    256,607,998.80/384,911,998.20 = 74,873,547.60/x
  3. Step 3: Cross multiply
    256,607,998.80x = 384,911,998.20 × 74,873,547.60
  4. Step 4: Simplify right side
    256,607,998.80x = 28,819,726,819,038,812
  5. Step 5: Solve for x
    x = 28,819,726,819,038,812/256,607,998.80
  6. Step 6: Final answer
    x = 112,310,321.40

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1.5x scale

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.