Home / 287,573,921.60-431,360,882.40-219,549,473.60

Finding the Fourth Proportional to 287,573,921.60, 431,360,882.40 and 219,549,473.60

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Solution

The fourth proportional to 287,573,921.60, 431,360,882.40 and 219,549,473.60 is: 329,324,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,573,921.60 : 431,360,882.40 = 219,549,473.60 : x
  2. Step 2: Convert to fraction form
    287,573,921.60/431,360,882.40 = 219,549,473.60/x
  3. Step 3: Cross multiply
    287,573,921.60x = 431,360,882.40 × 219,549,473.60
  4. Step 4: Simplify right side
    287,573,921.60x = 94,705,054,662,551,504
  5. Step 5: Solve for x
    x = 94,705,054,662,551,504/287,573,921.60
  6. Step 6: Final answer
    x = 329,324,210.40

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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.