Home / 315,557,599.95-473,336,392.64-85,526,680.05

Finding the Fourth Proportional to 315,557,599.95, 473,336,392.64 and 85,526,680.05

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Solution

The fourth proportional to 315,557,599.95, 473,336,392.64 and 85,526,680.05 is: 128,290,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,557,599.95 : 473,336,392.64 = 85,526,680.05 : x
  2. Step 2: Convert to fraction form
    315,557,599.95/473,336,392.64 = 85,526,680.05/x
  3. Step 3: Cross multiply
    315,557,599.95x = 473,336,392.64 × 85,526,680.05
  4. Step 4: Simplify right side
    315,557,599.95x = 40,482,890,208,914,816
  5. Step 5: Solve for x
    x = 40,482,890,208,914,816/315,557,599.95
  6. Step 6: Final answer
    x = 128,290,018.10

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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.