Home / 21,017,477.60-31,526,216.40-11,916,058.40

Finding the Fourth Proportional to 21,017,477.60, 31,526,216.40 and 11,916,058.40

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Solution

The fourth proportional to 21,017,477.60, 31,526,216.40 and 11,916,058.40 is: 17,874,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017,477.60 : 31,526,216.40 = 11,916,058.40 : x
  2. Step 2: Convert to fraction form
    21,017,477.60/31,526,216.40 = 11,916,058.40/x
  3. Step 3: Cross multiply
    21,017,477.60x = 31,526,216.40 × 11,916,058.40
  4. Step 4: Simplify right side
    21,017,477.60x = 375,668,235,753,437.75
  5. Step 5: Solve for x
    x = 375,668,235,753,437.75/21,017,477.60
  6. Step 6: Final answer
    x = 17,874,087.60

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1.5x scale

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.