Home / 314,928,543.20-472,392,814.80-290,057,104.40

Finding the Fourth Proportional to 314,928,543.20, 472,392,814.80 and 290,057,104.40

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Solution

The fourth proportional to 314,928,543.20, 472,392,814.80 and 290,057,104.40 is: 435,085,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,543.20 : 472,392,814.80 = 290,057,104.40 : x
  2. Step 2: Convert to fraction form
    314,928,543.20/472,392,814.80 = 290,057,104.40/x
  3. Step 3: Cross multiply
    314,928,543.20x = 472,392,814.80 × 290,057,104.40
  4. Step 4: Simplify right side
    314,928,543.20x = 137,020,892,000,253,456
  5. Step 5: Solve for x
    x = 137,020,892,000,253,456/314,928,543.20
  6. Step 6: Final answer
    x = 435,085,656.60

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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.