Home / 21,217,554,666.30-31,826,332,030.56-8,623,462,443.78

Finding the Fourth Proportional to 21,217,554,666.30, 31,826,332,030.56 and 8,623,462,443.78

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Solution

The fourth proportional to 21,217,554,666.30, 31,826,332,030.56 and 8,623,462,443.78 is: 12,935,193,678.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217,554,666.30 : 31,826,332,030.56 = 8,623,462,443.78 : x
  2. Step 2: Convert to fraction form
    21,217,554,666.30/31,826,332,030.56 = 8,623,462,443.78/x
  3. Step 3: Cross multiply
    21,217,554,666.30x = 31,826,332,030.56 × 8,623,462,443.78
  4. Step 4: Simplify right side
    21,217,554,666.30x = 274,453,178,988,806,668,288
  5. Step 5: Solve for x
    x = 274,453,178,988,806,668,288/21,217,554,666.30
  6. Step 6: Final answer
    x = 12,935,193,678.31

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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.