Home / 15,280,724-21,086,985.48-8,666,525.53

Finding the Fourth Proportional to 15,280,724, 21,086,985.48 and 8,666,525.53

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Solution

The fourth proportional to 15,280,724, 21,086,985.48 and 8,666,525.53 is: 11,959,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280,724 : 21,086,985.48 = 8,666,525.53 : x
  2. Step 2: Convert to fraction form
    15,280,724/21,086,985.48 = 8,666,525.53/x
  3. Step 3: Cross multiply
    15,280,724x = 21,086,985.48 × 8,666,525.53
  4. Step 4: Simplify right side
    15,280,724x = 182,750,898,013,159.28
  5. Step 5: Solve for x
    x = 182,750,898,013,159.28/15,280,724
  6. Step 6: Final answer
    x = 11,959,570.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.