Home / 145,436,675.70-218,155,013.55-91,017,117.30

Finding the Fourth Proportional to 145,436,675.70, 218,155,013.55 and 91,017,117.30

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Solution

The fourth proportional to 145,436,675.70, 218,155,013.55 and 91,017,117.30 is: 136,525,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,436,675.70 : 218,155,013.55 = 91,017,117.30 : x
  2. Step 2: Convert to fraction form
    145,436,675.70/218,155,013.55 = 91,017,117.30/x
  3. Step 3: Cross multiply
    145,436,675.70x = 218,155,013.55 × 91,017,117.30
  4. Step 4: Simplify right side
    145,436,675.70x = 19,855,840,457,863,440
  5. Step 5: Solve for x
    x = 19,855,840,457,863,440/145,436,675.70
  6. Step 6: Final answer
    x = 136,525,675.95

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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.