Home / 112,900,731.95-155,512,713.75-79,804,081.16

Finding the Fourth Proportional to 112,900,731.95, 155,512,713.75 and 79,804,081.16

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Solution

The fourth proportional to 112,900,731.95, 155,512,713.75 and 79,804,081.16 is: 109,924,435.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,900,731.95 : 155,512,713.75 = 79,804,081.16 : x
  2. Step 2: Convert to fraction form
    112,900,731.95/155,512,713.75 = 79,804,081.16/x
  3. Step 3: Cross multiply
    112,900,731.95x = 155,512,713.75 × 79,804,081.16
  4. Step 4: Simplify right side
    112,900,731.95x = 12,410,549,228,739,284
  5. Step 5: Solve for x
    x = 12,410,549,228,739,284/112,900,731.95
  6. Step 6: Final answer
    x = 109,924,435.51

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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.