Home / 13,358,776,785.56-18,441,388,456.71-7,718,901,688.34

Finding the Fourth Proportional to 13,358,776,785.56, 18,441,388,456.71 and 7,718,901,688.34

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Solution

The fourth proportional to 13,358,776,785.56, 18,441,388,456.71 and 7,718,901,688.34 is: 10,655,710,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358,776,785.56 : 18,441,388,456.71 = 7,718,901,688.34 : x
  2. Step 2: Convert to fraction form
    13,358,776,785.56/18,441,388,456.71 = 7,718,901,688.34/x
  3. Step 3: Cross multiply
    13,358,776,785.56x = 18,441,388,456.71 × 7,718,901,688.34
  4. Step 4: Simplify right side
    13,358,776,785.56x = 142,347,264,493,847,838,720
  5. Step 5: Solve for x
    x = 142,347,264,493,847,838,720/13,358,776,785.56
  6. Step 6: Final answer
    x = 10,655,710,981.54

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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.