Home / 289,167,934.40-433,749,136.80-70,819,236.80

Finding the Fourth Proportional to 289,167,934.40, 433,749,136.80 and 70,819,236.80

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Solution

The fourth proportional to 289,167,934.40, 433,749,136.80 and 70,819,236.80 is: 106,228,178.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,167,934.40 : 433,749,136.80 = 70,819,236.80 : x
  2. Step 2: Convert to fraction form
    289,167,934.40/433,749,136.80 = 70,819,236.80/x
  3. Step 3: Cross multiply
    289,167,934.40x = 433,749,136.80 × 70,819,236.80
  4. Step 4: Simplify right side
    289,167,934.40x = 30,717,782,830,834,792
  5. Step 5: Solve for x
    x = 30,717,782,830,834,792/289,167,934.40
  6. Step 6: Final answer
    x = 106,228,178.08

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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.