Home / 280,797,689,720.55-387,501,554,923.15-152,339,134,343.07

Finding the Fourth Proportional to 280,797,689,720.55, 387,501,554,923.15 and 152,339,134,343.07

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Solution

The fourth proportional to 280,797,689,720.55, 387,501,554,923.15 and 152,339,134,343.07 is: 210,228,408,546.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,797,689,720.55 : 387,501,554,923.15 = 152,339,134,343.07 : x
  2. Step 2: Convert to fraction form
    280,797,689,720.55/387,501,554,923.15 = 152,339,134,343.07/x
  3. Step 3: Cross multiply
    280,797,689,720.55x = 387,501,554,923.15 × 152,339,134,343.07
  4. Step 4: Simplify right side
    280,797,689,720.55x = 59,031,651,433,586,272,239,616
  5. Step 5: Solve for x
    x = 59,031,651,433,586,272,239,616/280,797,689,720.55
  6. Step 6: Final answer
    x = 210,228,408,546.86

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1.5x scale

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.