Home / 15,518,354.90-21,417,004.32-8,549,744.54

Finding the Fourth Proportional to 15,518,354.90, 21,417,004.32 and 8,549,744.54

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Solution

The fourth proportional to 15,518,354.90, 21,417,004.32 and 8,549,744.54 is: 11,799,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518,354.90 : 21,417,004.32 = 8,549,744.54 : x
  2. Step 2: Convert to fraction form
    15,518,354.90/21,417,004.32 = 8,549,744.54/x
  3. Step 3: Cross multiply
    15,518,354.90x = 21,417,004.32 × 8,549,744.54
  4. Step 4: Simplify right side
    15,518,354.90x = 183,109,915,748,076.41
  5. Step 5: Solve for x
    x = 183,109,915,748,076.41/15,518,354.90
  6. Step 6: Final answer
    x = 11,799,570.05

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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.