Home / 219,779,979.20-329,669,968.80-56,017,419.20

Finding the Fourth Proportional to 219,779,979.20, 329,669,968.80 and 56,017,419.20

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Solution

The fourth proportional to 219,779,979.20, 329,669,968.80 and 56,017,419.20 is: 84,026,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,779,979.20 : 329,669,968.80 = 56,017,419.20 : x
  2. Step 2: Convert to fraction form
    219,779,979.20/329,669,968.80 = 56,017,419.20/x
  3. Step 3: Cross multiply
    219,779,979.20x = 329,669,968.80 × 56,017,419.20
  4. Step 4: Simplify right side
    219,779,979.20x = 18,467,260,839,920,524
  5. Step 5: Solve for x
    x = 18,467,260,839,920,524/219,779,979.20
  6. Step 6: Final answer
    x = 84,026,128.80

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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.