Home / 20,776,653.47-28,671,281.29-11,357,025.77

Finding the Fourth Proportional to 20,776,653.47, 28,671,281.29 and 11,357,025.77

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Solution

The fourth proportional to 20,776,653.47, 28,671,281.29 and 11,357,025.77 is: 15,672,421.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,653.47 : 28,671,281.29 = 11,357,025.77 : x
  2. Step 2: Convert to fraction form
    20,776,653.47/28,671,281.29 = 11,357,025.77/x
  3. Step 3: Cross multiply
    20,776,653.47x = 28,671,281.29 × 11,357,025.77
  4. Step 4: Simplify right side
    20,776,653.47x = 325,620,480,397,770.62
  5. Step 5: Solve for x
    x = 325,620,480,397,770.62/20,776,653.47
  6. Step 6: Final answer
    x = 15,672,421.98

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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.