Home / 13,148,645,533.61-18,144,644,711.10-7,127,021,647.88

Finding the Fourth Proportional to 13,148,645,533.61, 18,144,644,711.10 and 7,127,021,647.88

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Solution

The fourth proportional to 13,148,645,533.61, 18,144,644,711.10 and 7,127,021,647.88 is: 9,835,026,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,645,533.61 : 18,144,644,711.10 = 7,127,021,647.88 : x
  2. Step 2: Convert to fraction form
    13,148,645,533.61/18,144,644,711.10 = 7,127,021,647.88/x
  3. Step 3: Cross multiply
    13,148,645,533.61x = 18,144,644,711.10 × 7,127,021,647.88
  4. Step 4: Simplify right side
    13,148,645,533.61x = 129,317,275,649,056,079,872
  5. Step 5: Solve for x
    x = 129,317,275,649,056,079,872/13,148,645,533.61
  6. Step 6: Final answer
    x = 9,835,026,377.32

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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.