Home / 287,518,607.89-431,124,466.41-149,204,949.46

Finding the Fourth Proportional to 287,518,607.89, 431,124,466.41 and 149,204,949.46

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Solution

The fourth proportional to 287,518,607.89, 431,124,466.41 and 149,204,949.46 is: 223,727,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,518,607.89 : 431,124,466.41 = 149,204,949.46 : x
  2. Step 2: Convert to fraction form
    287,518,607.89/431,124,466.41 = 149,204,949.46/x
  3. Step 3: Cross multiply
    287,518,607.89x = 431,124,466.41 × 149,204,949.46
  4. Step 4: Simplify right side
    287,518,607.89x = 64,325,904,221,673,528
  5. Step 5: Solve for x
    x = 64,325,904,221,673,528/287,518,607.89
  6. Step 6: Final answer
    x = 223,727,795.20

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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.