Home / 15,784,556,901.30-21,785,495,169.83-9,441,622,561.95

Finding the Fourth Proportional to 15,784,556,901.30, 21,785,495,169.83 and 9,441,622,561.95

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Solution

The fourth proportional to 15,784,556,901.30, 21,785,495,169.83 and 9,441,622,561.95 is: 13,031,117,946.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784,556,901.30 : 21,785,495,169.83 = 9,441,622,561.95 : x
  2. Step 2: Convert to fraction form
    15,784,556,901.30/21,785,495,169.83 = 9,441,622,561.95/x
  3. Step 3: Cross multiply
    15,784,556,901.30x = 21,785,495,169.83 × 9,441,622,561.95
  4. Step 4: Simplify right side
    15,784,556,901.30x = 205,690,422,718,672,502,784
  5. Step 5: Solve for x
    x = 205,690,422,718,672,502,784/15,784,556,901.30
  6. Step 6: Final answer
    x = 13,031,117,946.79

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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.