Home / 42,704,430.40-64,056,645.60-19,675,320.40

Finding the Fourth Proportional to 42,704,430.40, 64,056,645.60 and 19,675,320.40

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Solution

The fourth proportional to 42,704,430.40, 64,056,645.60 and 19,675,320.40 is: 29,512,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,704,430.40 : 64,056,645.60 = 19,675,320.40 : x
  2. Step 2: Convert to fraction form
    42,704,430.40/64,056,645.60 = 19,675,320.40/x
  3. Step 3: Cross multiply
    42,704,430.40x = 64,056,645.60 × 19,675,320.40
  4. Step 4: Simplify right side
    42,704,430.40x = 1,260,335,025,929,250.25
  5. Step 5: Solve for x
    x = 1,260,335,025,929,250.25/42,704,430.40
  6. Step 6: Final answer
    x = 29,512,980.60

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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.