Home / 42,715,258.40-64,066,666.80-12,419,962.40

Finding the Fourth Proportional to 42,715,258.40, 64,066,666.80 and 12,419,962.40

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Solution

The fourth proportional to 42,715,258.40, 64,066,666.80 and 12,419,962.40 is: 18,628,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,715,258.40 : 64,066,666.80 = 12,419,962.40 : x
  2. Step 2: Convert to fraction form
    42,715,258.40/64,066,666.80 = 12,419,962.40/x
  3. Step 3: Cross multiply
    42,715,258.40x = 64,066,666.80 × 12,419,962.40
  4. Step 4: Simplify right side
    42,715,258.40x = 795,705,592,749,328.25
  5. Step 5: Solve for x
    x = 795,705,592,749,328.25/42,715,258.40
  6. Step 6: Final answer
    x = 18,628,134.83

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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.