Home / 21,141,795-31,712,692.50-5,185,443

Finding the Fourth Proportional to 21,141,795, 31,712,692.50 and 5,185,443

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Solution

The fourth proportional to 21,141,795, 31,712,692.50 and 5,185,443 is: 7,778,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,795 : 31,712,692.50 = 5,185,443 : x
  2. Step 2: Convert to fraction form
    21,141,795/31,712,692.50 = 5,185,443/x
  3. Step 3: Cross multiply
    21,141,795x = 31,712,692.50 × 5,185,443
  4. Step 4: Simplify right side
    21,141,795x = 164,444,359,335,277.50
  5. Step 5: Solve for x
    x = 164,444,359,335,277.50/21,141,795
  6. Step 6: Final answer
    x = 7,778,164.50

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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.