Home / 201,816,013.20-302,724,019.80-99,779,341.20

Finding the Fourth Proportional to 201,816,013.20, 302,724,019.80 and 99,779,341.20

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Solution

The fourth proportional to 201,816,013.20, 302,724,019.80 and 99,779,341.20 is: 149,669,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,816,013.20 : 302,724,019.80 = 99,779,341.20 : x
  2. Step 2: Convert to fraction form
    201,816,013.20/302,724,019.80 = 99,779,341.20/x
  3. Step 3: Cross multiply
    201,816,013.20x = 302,724,019.80 × 99,779,341.20
  4. Step 4: Simplify right side
    201,816,013.20x = 30,205,603,261,059,756
  5. Step 5: Solve for x
    x = 30,205,603,261,059,756/201,816,013.20
  6. Step 6: Final answer
    x = 149,669,011.80

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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.