Home / 42,604,805.80-63,907,208.70-19,887,999.40

Finding the Fourth Proportional to 42,604,805.80, 63,907,208.70 and 19,887,999.40

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Solution

The fourth proportional to 42,604,805.80, 63,907,208.70 and 19,887,999.40 is: 29,831,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,604,805.80 : 63,907,208.70 = 19,887,999.40 : x
  2. Step 2: Convert to fraction form
    42,604,805.80/63,907,208.70 = 19,887,999.40/x
  3. Step 3: Cross multiply
    42,604,805.80x = 63,907,208.70 × 19,887,999.40
  4. Step 4: Simplify right side
    42,604,805.80x = 1,270,986,528,281,274.75
  5. Step 5: Solve for x
    x = 1,270,986,528,281,274.75/42,604,805.80
  6. Step 6: Final answer
    x = 29,831,999.10

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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.