Home / 1,292,912,332.95-1,939,368,525.05-310,338,872.22

Finding the Fourth Proportional to 1,292,912,332.95, 1,939,368,525.05 and 310,338,872.22

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Solution

The fourth proportional to 1,292,912,332.95, 1,939,368,525.05 and 310,338,872.22 is: 465,508,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,912,332.95 : 1,939,368,525.05 = 310,338,872.22 : x
  2. Step 2: Convert to fraction form
    1,292,912,332.95/1,939,368,525.05 = 310,338,872.22/x
  3. Step 3: Cross multiply
    1,292,912,332.95x = 1,939,368,525.05 × 310,338,872.22
  4. Step 4: Simplify right side
    1,292,912,332.95x = 601,861,440,882,981,888
  5. Step 5: Solve for x
    x = 601,861,440,882,981,888/1,292,912,332.95
  6. Step 6: Final answer
    x = 465,508,314.48

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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.