Home / 28,018,001.90-42,013,006.05-12,854,801.90

Finding the Fourth Proportional to 28,018,001.90, 42,013,006.05 and 12,854,801.90

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Solution

The fourth proportional to 28,018,001.90, 42,013,006.05 and 12,854,801.90 is: 19,275,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018,001.90 : 42,013,006.05 = 12,854,801.90 : x
  2. Step 2: Convert to fraction form
    28,018,001.90/42,013,006.05 = 12,854,801.90/x
  3. Step 3: Cross multiply
    28,018,001.90x = 42,013,006.05 × 12,854,801.90
  4. Step 4: Simplify right side
    28,018,001.90x = 540,068,869,996,251.50
  5. Step 5: Solve for x
    x = 540,068,869,996,251.50/28,018,001.90
  6. Step 6: Final answer
    x = 19,275,781.05

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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.