Home / 30,328,641.15-45,492,961.73-21,719,296.95

Finding the Fourth Proportional to 30,328,641.15, 45,492,961.73 and 21,719,296.95

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Solution

The fourth proportional to 30,328,641.15, 45,492,961.73 and 21,719,296.95 is: 32,578,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328,641.15 : 45,492,961.73 = 21,719,296.95 : x
  2. Step 2: Convert to fraction form
    30,328,641.15/45,492,961.73 = 21,719,296.95/x
  3. Step 3: Cross multiply
    30,328,641.15x = 45,492,961.73 × 21,719,296.95
  4. Step 4: Simplify right side
    30,328,641.15x = 988,075,144,840,259.25
  5. Step 5: Solve for x
    x = 988,075,144,840,259.25/30,328,641.15
  6. Step 6: Final answer
    x = 32,578,945.43

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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.