Home / 212,483,122.47-318,817,390.64-74,407,830.57

Finding the Fourth Proportional to 212,483,122.47, 318,817,390.64 and 74,407,830.57

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Solution

The fourth proportional to 212,483,122.47, 318,817,390.64 and 74,407,830.57 is: 111,644,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,483,122.47 : 318,817,390.64 = 74,407,830.57 : x
  2. Step 2: Convert to fraction form
    212,483,122.47/318,817,390.64 = 74,407,830.57/x
  3. Step 3: Cross multiply
    212,483,122.47x = 318,817,390.64 × 74,407,830.57
  4. Step 4: Simplify right side
    212,483,122.47x = 23,722,510,385,138,580
  5. Step 5: Solve for x
    x = 23,722,510,385,138,580/212,483,122.47
  6. Step 6: Final answer
    x = 111,644,210.18

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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.