Home / 27,639,267.60-38,142,321.84-15,249,360.40

Finding the Fourth Proportional to 27,639,267.60, 38,142,321.84 and 15,249,360.40

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Solution

The fourth proportional to 27,639,267.60, 38,142,321.84 and 15,249,360.40 is: 21,044,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639,267.60 : 38,142,321.84 = 15,249,360.40 : x
  2. Step 2: Convert to fraction form
    27,639,267.60/38,142,321.84 = 15,249,360.40/x
  3. Step 3: Cross multiply
    27,639,267.60x = 38,142,321.84 × 15,249,360.40
  4. Step 4: Simplify right side
    27,639,267.60x = 581,646,012,230,951.25
  5. Step 5: Solve for x
    x = 581,646,012,230,951.25/27,639,267.60
  6. Step 6: Final answer
    x = 21,044,190.48

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1.5x scale

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.