Home / 15,313,612.32-21,132,613.52-8,698,154.40

Finding the Fourth Proportional to 15,313,612.32, 21,132,613.52 and 8,698,154.40

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Solution

The fourth proportional to 15,313,612.32, 21,132,613.52 and 8,698,154.40 is: 12,003,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313,612.32 : 21,132,613.52 = 8,698,154.40 : x
  2. Step 2: Convert to fraction form
    15,313,612.32/21,132,613.52 = 8,698,154.40/x
  3. Step 3: Cross multiply
    15,313,612.32x = 21,132,613.52 × 8,698,154.40
  4. Step 4: Simplify right side
    15,313,612.32x = 183,814,735,272,487.50
  5. Step 5: Solve for x
    x = 183,814,735,272,487.50/15,313,612.32
  6. Step 6: Final answer
    x = 12,003,355.67

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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.