Home / 100,902,147,880.68-139,179,353,572.89-64,715,863,519.44

Finding the Fourth Proportional to 100,902,147,880.68, 139,179,353,572.89 and 64,715,863,519.44

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Solution

The fourth proportional to 100,902,147,880.68, 139,179,353,572.89 and 64,715,863,519.44 is: 89,265,810,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,902,147,880.68 : 139,179,353,572.89 = 64,715,863,519.44 : x
  2. Step 2: Convert to fraction form
    100,902,147,880.68/139,179,353,572.89 = 64,715,863,519.44/x
  3. Step 3: Cross multiply
    100,902,147,880.68x = 139,179,353,572.89 × 64,715,863,519.44
  4. Step 4: Simplify right side
    100,902,147,880.68x = 9,007,112,050,547,034,685,440
  5. Step 5: Solve for x
    x = 9,007,112,050,547,034,685,440/100,902,147,880.68
  6. Step 6: Final answer
    x = 89,265,810,884.40

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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.