Home / 785,570,747.91-1,178,447,300.30-260,986,665.42

Finding the Fourth Proportional to 785,570,747.91, 1,178,447,300.30 and 260,986,665.42

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Solution

The fourth proportional to 785,570,747.91, 1,178,447,300.30 and 260,986,665.42 is: 391,510,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,570,747.91 : 1,178,447,300.30 = 260,986,665.42 : x
  2. Step 2: Convert to fraction form
    785,570,747.91/1,178,447,300.30 = 260,986,665.42/x
  3. Step 3: Cross multiply
    785,570,747.91x = 1,178,447,300.30 × 260,986,665.42
  4. Step 4: Simplify right side
    785,570,747.91x = 307,559,031,277,193,408
  5. Step 5: Solve for x
    x = 307,559,031,277,193,408/785,570,747.91
  6. Step 6: Final answer
    x = 391,510,289.93

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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.