Home / 21,730,281.90-29,989,456.95-12,440,765.62

Finding the Fourth Proportional to 21,730,281.90, 29,989,456.95 and 12,440,765.62

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Solution

The fourth proportional to 21,730,281.90, 29,989,456.95 and 12,440,765.62 is: 17,169,211.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730,281.90 : 29,989,456.95 = 12,440,765.62 : x
  2. Step 2: Convert to fraction form
    21,730,281.90/29,989,456.95 = 12,440,765.62/x
  3. Step 3: Cross multiply
    21,730,281.90x = 29,989,456.95 × 12,440,765.62
  4. Step 4: Simplify right side
    21,730,281.90x = 373,091,804,986,030
  5. Step 5: Solve for x
    x = 373,091,804,986,030/21,730,281.90
  6. Step 6: Final answer
    x = 17,169,211.46

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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.