Home / 28,386,588.05-39,173,461.45-15,333,844.88

Finding the Fourth Proportional to 28,386,588.05, 39,173,461.45 and 15,333,844.88

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Solution

The fourth proportional to 28,386,588.05, 39,173,461.45 and 15,333,844.88 is: 21,160,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386,588.05 : 39,173,461.45 = 15,333,844.88 : x
  2. Step 2: Convert to fraction form
    28,386,588.05/39,173,461.45 = 15,333,844.88/x
  3. Step 3: Cross multiply
    28,386,588.05x = 39,173,461.45 × 15,333,844.88
  4. Step 4: Simplify right side
    28,386,588.05x = 600,679,781,126,208.12
  5. Step 5: Solve for x
    x = 600,679,781,126,208.12/28,386,588.05
  6. Step 6: Final answer
    x = 21,160,689.69

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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.