Home / 28,371,867.60-42,563,779.18-9,201,129.82

Finding the Fourth Proportional to 28,371,867.60, 42,563,779.18 and 9,201,129.82

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Solution

The fourth proportional to 28,371,867.60, 42,563,779.18 and 9,201,129.82 is: 13,803,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,867.60 : 42,563,779.18 = 9,201,129.82 : x
  2. Step 2: Convert to fraction form
    28,371,867.60/42,563,779.18 = 9,201,129.82/x
  3. Step 3: Cross multiply
    28,371,867.60x = 42,563,779.18 × 9,201,129.82
  4. Step 4: Simplify right side
    28,371,867.60x = 391,634,857,864,993.19
  5. Step 5: Solve for x
    x = 391,634,857,864,993.19/28,371,867.60
  6. Step 6: Final answer
    x = 13,803,633.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.