Home / 64,516,477.60-96,772,642.80-21,387,671.20

Finding the Fourth Proportional to 64,516,477.60, 96,772,642.80 and 21,387,671.20

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Solution

The fourth proportional to 64,516,477.60, 96,772,642.80 and 21,387,671.20 is: 32,080,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,516,477.60 : 96,772,642.80 = 21,387,671.20 : x
  2. Step 2: Convert to fraction form
    64,516,477.60/96,772,642.80 = 21,387,671.20/x
  3. Step 3: Cross multiply
    64,516,477.60x = 96,772,642.80 × 21,387,671.20
  4. Step 4: Simplify right side
    64,516,477.60x = 2,069,741,465,361,447.25
  5. Step 5: Solve for x
    x = 2,069,741,465,361,447.25/64,516,477.60
  6. Step 6: Final answer
    x = 32,080,819.39

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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.