Home / 13,117,034,710.80-19,680,087,029.40-12,663,538,390.80

Finding the Fourth Proportional to 13,117,034,710.80, 19,680,087,029.40 and 12,663,538,390.80

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Solution

The fourth proportional to 13,117,034,710.80, 19,680,087,029.40 and 12,663,538,390.80 is: 18,999,685,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117,034,710.80 : 19,680,087,029.40 = 12,663,538,390.80 : x
  2. Step 2: Convert to fraction form
    13,117,034,710.80/19,680,087,029.40 = 12,663,538,390.80/x
  3. Step 3: Cross multiply
    13,117,034,710.80x = 19,680,087,029.40 × 12,663,538,390.80
  4. Step 4: Simplify right side
    13,117,034,710.80x = 249,219,537,631,092,047,872
  5. Step 5: Solve for x
    x = 249,219,537,631,092,047,872/13,117,034,710.80
  6. Step 6: Final answer
    x = 18,999,685,761.74

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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.