Home / 42,905,623.40-64,358,435.10-19,876,513.40

Finding the Fourth Proportional to 42,905,623.40, 64,358,435.10 and 19,876,513.40

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Solution

The fourth proportional to 42,905,623.40, 64,358,435.10 and 19,876,513.40 is: 29,814,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,905,623.40 : 64,358,435.10 = 19,876,513.40 : x
  2. Step 2: Convert to fraction form
    42,905,623.40/64,358,435.10 = 19,876,513.40/x
  3. Step 3: Cross multiply
    42,905,623.40x = 64,358,435.10 × 19,876,513.40
  4. Step 4: Simplify right side
    42,905,623.40x = 1,279,221,297,668,180.25
  5. Step 5: Solve for x
    x = 1,279,221,297,668,180.25/42,905,623.40
  6. Step 6: Final answer
    x = 29,814,770.10

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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.