Home / 212,306,756.88-318,345,973.32-124,898,490.48

Finding the Fourth Proportional to 212,306,756.88, 318,345,973.32 and 124,898,490.48

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Solution

The fourth proportional to 212,306,756.88, 318,345,973.32 and 124,898,490.48 is: 187,280,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,306,756.88 : 318,345,973.32 = 124,898,490.48 : x
  2. Step 2: Convert to fraction form
    212,306,756.88/318,345,973.32 = 124,898,490.48/x
  3. Step 3: Cross multiply
    212,306,756.88x = 318,345,973.32 × 124,898,490.48
  4. Step 4: Simplify right side
    212,306,756.88x = 39,760,931,518,054,352
  5. Step 5: Solve for x
    x = 39,760,931,518,054,352/212,306,756.88
  6. Step 6: Final answer
    x = 187,280,575.06

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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.