Home / 289,167,927.40-433,749,126.30-70,819,229.80

Finding the Fourth Proportional to 289,167,927.40, 433,749,126.30 and 70,819,229.80

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Solution

The fourth proportional to 289,167,927.40, 433,749,126.30 and 70,819,229.80 is: 106,228,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,167,927.40 : 433,749,126.30 = 70,819,229.80 : x
  2. Step 2: Convert to fraction form
    289,167,927.40/433,749,126.30 = 70,819,229.80/x
  3. Step 3: Cross multiply
    289,167,927.40x = 433,749,126.30 × 70,819,229.80
  4. Step 4: Simplify right side
    289,167,927.40x = 30,717,779,050,988,924
  5. Step 5: Solve for x
    x = 30,717,779,050,988,924/289,167,927.40
  6. Step 6: Final answer
    x = 106,228,167.58

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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.