Home / 1,119,312,892.90-1,679,184,540.15-429,166,324.90

Finding the Fourth Proportional to 1,119,312,892.90, 1,679,184,540.15 and 429,166,324.90

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Solution

The fourth proportional to 1,119,312,892.90, 1,679,184,540.15 and 429,166,324.90 is: 643,831,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,312,892.90 : 1,679,184,540.15 = 429,166,324.90 : x
  2. Step 2: Convert to fraction form
    1,119,312,892.90/1,679,184,540.15 = 429,166,324.90/x
  3. Step 3: Cross multiply
    1,119,312,892.90x = 1,679,184,540.15 × 429,166,324.90
  4. Step 4: Simplify right side
    1,119,312,892.90x = 720,649,457,925,072,000
  5. Step 5: Solve for x
    x = 720,649,457,925,072,000/1,119,312,892.90
  6. Step 6: Final answer
    x = 643,831,999.52

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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.