Home / 8,920,815.76-12,310,486.55-5,249,948.58

Finding the Fourth Proportional to 8,920,815.76, 12,310,486.55 and 5,249,948.58

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Solution

The fourth proportional to 8,920,815.76, 12,310,486.55 and 5,249,948.58 is: 7,244,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920,815.76 : 12,310,486.55 = 5,249,948.58 : x
  2. Step 2: Convert to fraction form
    8,920,815.76/12,310,486.55 = 5,249,948.58/x
  3. Step 3: Cross multiply
    8,920,815.76x = 12,310,486.55 × 5,249,948.58
  4. Step 4: Simplify right side
    8,920,815.76x = 64,629,421,375,719.16
  5. Step 5: Solve for x
    x = 64,629,421,375,719.16/8,920,815.76
  6. Step 6: Final answer
    x = 7,244,788.27

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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.