Home / 20,139,397,225.37-30,203,943,123.09-5,971,049,920.79

Finding the Fourth Proportional to 20,139,397,225.37, 30,203,943,123.09 and 5,971,049,920.79

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Solution

The fourth proportional to 20,139,397,225.37, 30,203,943,123.09 and 5,971,049,920.79 is: 8,955,047,173.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,397,225.37 : 30,203,943,123.09 = 5,971,049,920.79 : x
  2. Step 2: Convert to fraction form
    20,139,397,225.37/30,203,943,123.09 = 5,971,049,920.79/x
  3. Step 3: Cross multiply
    20,139,397,225.37x = 30,203,943,123.09 × 5,971,049,920.79
  4. Step 4: Simplify right side
    20,139,397,225.37x = 180,349,252,192,521,191,424
  5. Step 5: Solve for x
    x = 180,349,252,192,521,191,424/20,139,397,225.37
  6. Step 6: Final answer
    x = 8,955,047,173.18

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1.5x scale

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.