Home / 20,912,506,591.90-28,859,356,827.10-11,880,760,294.23

Finding the Fourth Proportional to 20,912,506,591.90, 28,859,356,827.10 and 11,880,760,294.23

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Solution

The fourth proportional to 20,912,506,591.90, 28,859,356,827.10 and 11,880,760,294.23 is: 16,395,504,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,506,591.90 : 28,859,356,827.10 = 11,880,760,294.23 : x
  2. Step 2: Convert to fraction form
    20,912,506,591.90/28,859,356,827.10 = 11,880,760,294.23/x
  3. Step 3: Cross multiply
    20,912,506,591.90x = 28,859,356,827.10 × 11,880,760,294.23
  4. Step 4: Simplify right side
    20,912,506,591.90x = 342,871,100,708,386,111,488
  5. Step 5: Solve for x
    x = 342,871,100,708,386,111,488/20,912,506,591.90
  6. Step 6: Final answer
    x = 16,395,504,728.31

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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.