Home / 78,678,477.20-118,017,715.80-44,666,253.20

Finding the Fourth Proportional to 78,678,477.20, 118,017,715.80 and 44,666,253.20

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Solution

The fourth proportional to 78,678,477.20, 118,017,715.80 and 44,666,253.20 is: 66,999,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,678,477.20 : 118,017,715.80 = 44,666,253.20 : x
  2. Step 2: Convert to fraction form
    78,678,477.20/118,017,715.80 = 44,666,253.20/x
  3. Step 3: Cross multiply
    78,678,477.20x = 118,017,715.80 × 44,666,253.20
  4. Step 4: Simplify right side
    78,678,477.20x = 5,271,409,176,008,441
  5. Step 5: Solve for x
    x = 5,271,409,176,008,441/78,678,477.20
  6. Step 6: Final answer
    x = 66,999,379.80

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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.