Home / 68,241,472.40-102,362,208.60-19,720,909.10

Finding the Fourth Proportional to 68,241,472.40, 102,362,208.60 and 19,720,909.10

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Solution

The fourth proportional to 68,241,472.40, 102,362,208.60 and 19,720,909.10 is: 29,581,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,241,472.40 : 102,362,208.60 = 19,720,909.10 : x
  2. Step 2: Convert to fraction form
    68,241,472.40/102,362,208.60 = 19,720,909.10/x
  3. Step 3: Cross multiply
    68,241,472.40x = 102,362,208.60 × 19,720,909.10
  4. Step 4: Simplify right side
    68,241,472.40x = 2,018,675,811,075,838.25
  5. Step 5: Solve for x
    x = 2,018,675,811,075,838.25/68,241,472.40
  6. Step 6: Final answer
    x = 29,581,363.65

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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.