Home / 67,689,201.93-101,543,443.63-21,006,720.98

Finding the Fourth Proportional to 67,689,201.93, 101,543,443.63 and 21,006,720.98

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Solution

The fourth proportional to 67,689,201.93, 101,543,443.63 and 21,006,720.98 is: 31,513,073.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,689,201.93 : 101,543,443.63 = 21,006,720.98 : x
  2. Step 2: Convert to fraction form
    67,689,201.93/101,543,443.63 = 21,006,720.98/x
  3. Step 3: Cross multiply
    67,689,201.93x = 101,543,443.63 × 21,006,720.98
  4. Step 4: Simplify right side
    67,689,201.93x = 2,133,094,788,075,504
  5. Step 5: Solve for x
    x = 2,133,094,788,075,504/67,689,201.93
  6. Step 6: Final answer
    x = 31,513,073.39

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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.