Home / 10,080,429,810.40-15,120,644,715.60-6,978,514,981.60

Finding the Fourth Proportional to 10,080,429,810.40, 15,120,644,715.60 and 6,978,514,981.60

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Solution

The fourth proportional to 10,080,429,810.40, 15,120,644,715.60 and 6,978,514,981.60 is: 10,467,772,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080,429,810.40 : 15,120,644,715.60 = 6,978,514,981.60 : x
  2. Step 2: Convert to fraction form
    10,080,429,810.40/15,120,644,715.60 = 6,978,514,981.60/x
  3. Step 3: Cross multiply
    10,080,429,810.40x = 15,120,644,715.60 × 6,978,514,981.60
  4. Step 4: Simplify right side
    10,080,429,810.40x = 105,519,645,679,265,480,704
  5. Step 5: Solve for x
    x = 105,519,645,679,265,480,704/10,080,429,810.40
  6. Step 6: Final answer
    x = 10,467,772,472.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.