Home / 28,061,897.60-42,092,846.40-18,488,086.40

Finding the Fourth Proportional to 28,061,897.60, 42,092,846.40 and 18,488,086.40

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Solution

The fourth proportional to 28,061,897.60, 42,092,846.40 and 18,488,086.40 is: 27,732,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061,897.60 : 42,092,846.40 = 18,488,086.40 : x
  2. Step 2: Convert to fraction form
    28,061,897.60/42,092,846.40 = 18,488,086.40/x
  3. Step 3: Cross multiply
    28,061,897.60x = 42,092,846.40 × 18,488,086.40
  4. Step 4: Simplify right side
    28,061,897.60x = 778,216,181,065,128.88
  5. Step 5: Solve for x
    x = 778,216,181,065,128.88/28,061,897.60
  6. Step 6: Final answer
    x = 27,732,129.60

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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.