Home / 42,639,701.40-63,964,032.48-13,888,075.86

Finding the Fourth Proportional to 42,639,701.40, 63,964,032.48 and 13,888,075.86

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Solution

The fourth proportional to 42,639,701.40, 63,964,032.48 and 13,888,075.86 is: 20,833,573.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639,701.40 : 63,964,032.48 = 13,888,075.86 : x
  2. Step 2: Convert to fraction form
    42,639,701.40/63,964,032.48 = 13,888,075.86/x
  3. Step 3: Cross multiply
    42,639,701.40x = 63,964,032.48 × 13,888,075.86
  4. Step 4: Simplify right side
    42,639,701.40x = 888,337,335,393,743.88
  5. Step 5: Solve for x
    x = 888,337,335,393,743.88/42,639,701.40
  6. Step 6: Final answer
    x = 20,833,573.08

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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.