Home / 291,287,948.79-401,983,295.04-159,137,504.67

Finding the Fourth Proportional to 291,287,948.79, 401,983,295.04 and 159,137,504.67

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Solution

The fourth proportional to 291,287,948.79, 401,983,295.04 and 159,137,504.67 is: 219,612,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,287,948.79 : 401,983,295.04 = 159,137,504.67 : x
  2. Step 2: Convert to fraction form
    291,287,948.79/401,983,295.04 = 159,137,504.67/x
  3. Step 3: Cross multiply
    291,287,948.79x = 401,983,295.04 × 159,137,504.67
  4. Step 4: Simplify right side
    291,287,948.79x = 63,970,618,490,894,296
  5. Step 5: Solve for x
    x = 63,970,618,490,894,296/291,287,948.79
  6. Step 6: Final answer
    x = 219,612,993.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.