Home / 28,049,986,261.50-38,710,197,829.35-15,533,487,829.50

Finding the Fourth Proportional to 28,049,986,261.50, 38,710,197,829.35 and 15,533,487,829.50

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Solution

The fourth proportional to 28,049,986,261.50, 38,710,197,829.35 and 15,533,487,829.50 is: 21,436,887,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049,986,261.50 : 38,710,197,829.35 = 15,533,487,829.50 : x
  2. Step 2: Convert to fraction form
    28,049,986,261.50/38,710,197,829.35 = 15,533,487,829.50/x
  3. Step 3: Cross multiply
    28,049,986,261.50x = 38,710,197,829.35 × 15,533,487,829.50
  4. Step 4: Simplify right side
    28,049,986,261.50x = 601,304,386,859,745,542,144
  5. Step 5: Solve for x
    x = 601,304,386,859,745,542,144/28,049,986,261.50
  6. Step 6: Final answer
    x = 21,436,887,036.38

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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.