Home / 20,876,724,113.81-28,815,950,116.98-13,643,859,656.07

Finding the Fourth Proportional to 20,876,724,113.81, 28,815,950,116.98 and 13,643,859,656.07

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Solution

The fourth proportional to 20,876,724,113.81, 28,815,950,116.98 and 13,643,859,656.07 is: 18,832,493,886.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,876,724,113.81 : 28,815,950,116.98 = 13,643,859,656.07 : x
  2. Step 2: Convert to fraction form
    20,876,724,113.81/28,815,950,116.98 = 13,643,859,656.07/x
  3. Step 3: Cross multiply
    20,876,724,113.81x = 28,815,950,116.98 × 13,643,859,656.07
  4. Step 4: Simplify right side
    20,876,724,113.81x = 393,160,779,252,388,986,880
  5. Step 5: Solve for x
    x = 393,160,779,252,388,986,880/20,876,724,113.81
  6. Step 6: Final answer
    x = 18,832,493,886.93

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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.