Home / 42,549,964.80-63,789,955.20-18,307,507.20

Finding the Fourth Proportional to 42,549,964.80, 63,789,955.20 and 18,307,507.20

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Solution

The fourth proportional to 42,549,964.80, 63,789,955.20 and 18,307,507.20 is: 27,446,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,549,964.80 : 63,789,955.20 = 18,307,507.20 : x
  2. Step 2: Convert to fraction form
    42,549,964.80/63,789,955.20 = 18,307,507.20/x
  3. Step 3: Cross multiply
    42,549,964.80x = 63,789,955.20 × 18,307,507.20
  4. Step 4: Simplify right side
    42,549,964.80x = 1,167,835,064,111,677.50
  5. Step 5: Solve for x
    x = 1,167,835,064,111,677.50/42,549,964.80
  6. Step 6: Final answer
    x = 27,446,205.18

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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.