Home / 42,705,150.40-64,051,504.80-12,409,854.40

Finding the Fourth Proportional to 42,705,150.40, 64,051,504.80 and 12,409,854.40

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Solution

The fourth proportional to 42,705,150.40, 64,051,504.80 and 12,409,854.40 is: 18,612,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,705,150.40 : 64,051,504.80 = 12,409,854.40 : x
  2. Step 2: Convert to fraction form
    42,705,150.40/64,051,504.80 = 12,409,854.40/x
  3. Step 3: Cross multiply
    42,705,150.40x = 64,051,504.80 × 12,409,854.40
  4. Step 4: Simplify right side
    42,705,150.40x = 794,869,848,668,901.12
  5. Step 5: Solve for x
    x = 794,869,848,668,901.12/42,705,150.40
  6. Step 6: Final answer
    x = 18,612,973.87

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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.