Home / 10,152,415.60-15,228,623.40-7,129,106.80

Finding the Fourth Proportional to 10,152,415.60, 15,228,623.40 and 7,129,106.80

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Solution

The fourth proportional to 10,152,415.60, 15,228,623.40 and 7,129,106.80 is: 10,693,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152,415.60 : 15,228,623.40 = 7,129,106.80 : x
  2. Step 2: Convert to fraction form
    10,152,415.60/15,228,623.40 = 7,129,106.80/x
  3. Step 3: Cross multiply
    10,152,415.60x = 15,228,623.40 × 7,129,106.80
  4. Step 4: Simplify right side
    10,152,415.60x = 108,566,482,635,579.12
  5. Step 5: Solve for x
    x = 108,566,482,635,579.12/10,152,415.60
  6. Step 6: Final answer
    x = 10,693,660.20

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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.