Home / 312,938,589.06-469,216,564.80-149,226,417.54

Finding the Fourth Proportional to 312,938,589.06, 469,216,564.80 and 149,226,417.54

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Solution

The fourth proportional to 312,938,589.06, 469,216,564.80 and 149,226,417.54 is: 223,748,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,938,589.06 : 469,216,564.80 = 149,226,417.54 : x
  2. Step 2: Convert to fraction form
    312,938,589.06/469,216,564.80 = 149,226,417.54/x
  3. Step 3: Cross multiply
    312,938,589.06x = 469,216,564.80 × 149,226,417.54
  4. Step 4: Simplify right side
    312,938,589.06x = 70,019,507,015,529,264
  5. Step 5: Solve for x
    x = 70,019,507,015,529,264/312,938,589.06
  6. Step 6: Final answer
    x = 223,748,394.94

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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.