Home / 5,158,680,307.20-7,118,980,738.56-2,931,015,421.44

Finding the Fourth Proportional to 5,158,680,307.20, 7,118,980,738.56 and 2,931,015,421.44

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Solution

The fourth proportional to 5,158,680,307.20, 7,118,980,738.56 and 2,931,015,421.44 is: 4,044,802,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158,680,307.20 : 7,118,980,738.56 = 2,931,015,421.44 : x
  2. Step 2: Convert to fraction form
    5,158,680,307.20/7,118,980,738.56 = 2,931,015,421.44/x
  3. Step 3: Cross multiply
    5,158,680,307.20x = 7,118,980,738.56 × 2,931,015,421.44
  4. Step 4: Simplify right side
    5,158,680,307.20x = 20,865,842,329,653,682,176
  5. Step 5: Solve for x
    x = 20,865,842,329,653,682,176/5,158,680,307.20
  6. Step 6: Final answer
    x = 4,044,802,369.42

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Double scale
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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.