Home / 28,905,459.04-39,890,265.84-15,853,237.60

Finding the Fourth Proportional to 28,905,459.04, 39,890,265.84 and 15,853,237.60

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Solution

The fourth proportional to 28,905,459.04, 39,890,265.84 and 15,853,237.60 is: 21,877,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905,459.04 : 39,890,265.84 = 15,853,237.60 : x
  2. Step 2: Convert to fraction form
    28,905,459.04/39,890,265.84 = 15,853,237.60/x
  3. Step 3: Cross multiply
    28,905,459.04x = 39,890,265.84 × 15,853,237.60
  4. Step 4: Simplify right side
    28,905,459.04x = 632,389,862,288,683.62
  5. Step 5: Solve for x
    x = 632,389,862,288,683.62/28,905,459.04
  6. Step 6: Final answer
    x = 21,877,869.55

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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.