Home / 77,157,792.48-115,717,196.88-28,608,964.32

Finding the Fourth Proportional to 77,157,792.48, 115,717,196.88 and 28,608,964.32

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Solution

The fourth proportional to 77,157,792.48, 115,717,196.88 and 28,608,964.32 is: 42,906,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,157,792.48 : 115,717,196.88 = 28,608,964.32 : x
  2. Step 2: Convert to fraction form
    77,157,792.48/115,717,196.88 = 28,608,964.32/x
  3. Step 3: Cross multiply
    77,157,792.48x = 115,717,196.88 × 28,608,964.32
  4. Step 4: Simplify right side
    77,157,792.48x = 3,310,549,156,750,335
  5. Step 5: Solve for x
    x = 3,310,549,156,750,335/77,157,792.48
  6. Step 6: Final answer
    x = 42,906,219.20

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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.