Home / 12,908,696,332.48-17,813,819,857.44-7,193,221,653.76

Finding the Fourth Proportional to 12,908,696,332.48, 17,813,819,857.44 and 7,193,221,653.76

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Solution

The fourth proportional to 12,908,696,332.48, 17,813,819,857.44 and 7,193,221,653.76 is: 9,926,544,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908,696,332.48 : 17,813,819,857.44 = 7,193,221,653.76 : x
  2. Step 2: Convert to fraction form
    12,908,696,332.48/17,813,819,857.44 = 7,193,221,653.76/x
  3. Step 3: Cross multiply
    12,908,696,332.48x = 17,813,819,857.44 × 7,193,221,653.76
  4. Step 4: Simplify right side
    12,908,696,332.48x = 128,138,754,734,717,272,064
  5. Step 5: Solve for x
    x = 128,138,754,734,717,272,064/12,908,696,332.48
  6. Step 6: Final answer
    x = 9,926,544,976.68

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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.