Home / 42,851,809.80-64,277,714.70-31,939,554.60

Finding the Fourth Proportional to 42,851,809.80, 64,277,714.70 and 31,939,554.60

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Solution

The fourth proportional to 42,851,809.80, 64,277,714.70 and 31,939,554.60 is: 47,909,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,851,809.80 : 64,277,714.70 = 31,939,554.60 : x
  2. Step 2: Convert to fraction form
    42,851,809.80/64,277,714.70 = 31,939,554.60/x
  3. Step 3: Cross multiply
    42,851,809.80x = 64,277,714.70 × 31,939,554.60
  4. Step 4: Simplify right side
    42,851,809.80x = 2,053,001,578,223,872.75
  5. Step 5: Solve for x
    x = 2,053,001,578,223,872.75/42,851,809.80
  6. Step 6: Final answer
    x = 47,909,331.90

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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.