Home / 12,837,378,259.40-17,715,602,838.68-7,121,662,833.61

Finding the Fourth Proportional to 12,837,378,259.40, 17,715,602,838.68 and 7,121,662,833.61

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Solution

The fourth proportional to 12,837,378,259.40, 17,715,602,838.68 and 7,121,662,833.61 is: 9,827,906,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837,378,259.40 : 17,715,602,838.68 = 7,121,662,833.61 : x
  2. Step 2: Convert to fraction form
    12,837,378,259.40/17,715,602,838.68 = 7,121,662,833.61/x
  3. Step 3: Cross multiply
    12,837,378,259.40x = 17,715,602,838.68 × 7,121,662,833.61
  4. Step 4: Simplify right side
    12,837,378,259.40x = 126,164,550,311,223,164,928
  5. Step 5: Solve for x
    x = 126,164,550,311,223,164,928/12,837,378,259.40
  6. Step 6: Final answer
    x = 9,827,906,271.97

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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.