Home / 15,518,359-21,417,009.90-8,549,748.64

Finding the Fourth Proportional to 15,518,359, 21,417,009.90 and 8,549,748.64

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Solution

The fourth proportional to 15,518,359, 21,417,009.90 and 8,549,748.64 is: 11,799,575.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518,359 : 21,417,009.90 = 8,549,748.64 : x
  2. Step 2: Convert to fraction form
    15,518,359/21,417,009.90 = 8,549,748.64/x
  3. Step 3: Cross multiply
    15,518,359x = 21,417,009.90 × 8,549,748.64
  4. Step 4: Simplify right side
    15,518,359x = 183,110,051,265,391.53
  5. Step 5: Solve for x
    x = 183,110,051,265,391.53/15,518,359
  6. Step 6: Final answer
    x = 11,799,575.67

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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.