Home / 12,920,871.60-19,376,641.80-6,528,999.60

Finding the Fourth Proportional to 12,920,871.60, 19,376,641.80 and 6,528,999.60

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Solution

The fourth proportional to 12,920,871.60, 19,376,641.80 and 6,528,999.60 is: 9,791,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,871.60 : 19,376,641.80 = 6,528,999.60 : x
  2. Step 2: Convert to fraction form
    12,920,871.60/19,376,641.80 = 6,528,999.60/x
  3. Step 3: Cross multiply
    12,920,871.60x = 19,376,641.80 × 6,528,999.60
  4. Step 4: Simplify right side
    12,920,871.60x = 126,510,086,561,543.28
  5. Step 5: Solve for x
    x = 126,510,086,561,543.28/12,920,871.60
  6. Step 6: Final answer
    x = 9,791,141.84

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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.