Home / 12,998,862.40-17,938,971.14-7,197,643.96

Finding the Fourth Proportional to 12,998,862.40, 17,938,971.14 and 7,197,643.96

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Solution

The fourth proportional to 12,998,862.40, 17,938,971.14 and 7,197,643.96 is: 9,933,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,862.40 : 17,938,971.14 = 7,197,643.96 : x
  2. Step 2: Convert to fraction form
    12,998,862.40/17,938,971.14 = 7,197,643.96/x
  3. Step 3: Cross multiply
    12,998,862.40x = 17,938,971.14 × 7,197,643.96
  4. Step 4: Simplify right side
    12,998,862.40x = 129,118,327,148,752.25
  5. Step 5: Solve for x
    x = 129,118,327,148,752.25/12,998,862.40
  6. Step 6: Final answer
    x = 9,933,048.23

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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.