Home / 140,988,897.90-211,483,346.85-128,872,043.10

Finding the Fourth Proportional to 140,988,897.90, 211,483,346.85 and 128,872,043.10

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Solution

The fourth proportional to 140,988,897.90, 211,483,346.85 and 128,872,043.10 is: 193,308,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,988,897.90 : 211,483,346.85 = 128,872,043.10 : x
  2. Step 2: Convert to fraction form
    140,988,897.90/211,483,346.85 = 128,872,043.10/x
  3. Step 3: Cross multiply
    140,988,897.90x = 211,483,346.85 × 128,872,043.10
  4. Step 4: Simplify right side
    140,988,897.90x = 27,254,290,990,185,448
  5. Step 5: Solve for x
    x = 27,254,290,990,185,448/140,988,897.90
  6. Step 6: Final answer
    x = 193,308,064.65

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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.