Home / 85,536,029.60-128,304,044.40-28,014,430.40

Finding the Fourth Proportional to 85,536,029.60, 128,304,044.40 and 28,014,430.40

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Solution

The fourth proportional to 85,536,029.60, 128,304,044.40 and 28,014,430.40 is: 42,021,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,029.60 : 128,304,044.40 = 28,014,430.40 : x
  2. Step 2: Convert to fraction form
    85,536,029.60/128,304,044.40 = 28,014,430.40/x
  3. Step 3: Cross multiply
    85,536,029.60x = 128,304,044.40 × 28,014,430.40
  4. Step 4: Simplify right side
    85,536,029.60x = 3,594,364,721,882,309.50
  5. Step 5: Solve for x
    x = 3,594,364,721,882,309.50/85,536,029.60
  6. Step 6: Final answer
    x = 42,021,645.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.