Home / 13,169,607,426.91-18,173,571,598.12-7,147,983,544.88

Finding the Fourth Proportional to 13,169,607,426.91, 18,173,571,598.12 and 7,147,983,544.88

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Solution

The fourth proportional to 13,169,607,426.91, 18,173,571,598.12 and 7,147,983,544.88 is: 9,863,953,155.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169,607,426.91 : 18,173,571,598.12 = 7,147,983,544.88 : x
  2. Step 2: Convert to fraction form
    13,169,607,426.91/18,173,571,598.12 = 7,147,983,544.88/x
  3. Step 3: Cross multiply
    13,169,607,426.91x = 18,173,571,598.12 × 7,147,983,544.88
  4. Step 4: Simplify right side
    13,169,607,426.91x = 129,904,390,735,093,366,784
  5. Step 5: Solve for x
    x = 129,904,390,735,093,366,784/13,169,607,426.91
  6. Step 6: Final answer
    x = 9,863,953,155.48

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Double scale
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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.