Home / 140,736,007.20-211,104,010.80-86,988,295.20

Finding the Fourth Proportional to 140,736,007.20, 211,104,010.80 and 86,988,295.20

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Solution

The fourth proportional to 140,736,007.20, 211,104,010.80 and 86,988,295.20 is: 130,482,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,736,007.20 : 211,104,010.80 = 86,988,295.20 : x
  2. Step 2: Convert to fraction form
    140,736,007.20/211,104,010.80 = 86,988,295.20/x
  3. Step 3: Cross multiply
    140,736,007.20x = 211,104,010.80 × 86,988,295.20
  4. Step 4: Simplify right side
    140,736,007.20x = 18,363,578,009,374,388
  5. Step 5: Solve for x
    x = 18,363,578,009,374,388/140,736,007.20
  6. Step 6: Final answer
    x = 130,482,442.80

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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.