Home / 70,418,207.20-105,627,310.80-53,412,095.20

Finding the Fourth Proportional to 70,418,207.20, 105,627,310.80 and 53,412,095.20

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Solution

The fourth proportional to 70,418,207.20, 105,627,310.80 and 53,412,095.20 is: 80,118,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,418,207.20 : 105,627,310.80 = 53,412,095.20 : x
  2. Step 2: Convert to fraction form
    70,418,207.20/105,627,310.80 = 53,412,095.20/x
  3. Step 3: Cross multiply
    70,418,207.20x = 105,627,310.80 × 53,412,095.20
  4. Step 4: Simplify right side
    70,418,207.20x = 5,641,775,980,169,588
  5. Step 5: Solve for x
    x = 5,641,775,980,169,588/70,418,207.20
  6. Step 6: Final answer
    x = 80,118,142.80

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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.