Home / 79,671,196.80-119,506,795.20-78,915,369.60

Finding the Fourth Proportional to 79,671,196.80, 119,506,795.20 and 78,915,369.60

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Solution

The fourth proportional to 79,671,196.80, 119,506,795.20 and 78,915,369.60 is: 118,373,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,671,196.80 : 119,506,795.20 = 78,915,369.60 : x
  2. Step 2: Convert to fraction form
    79,671,196.80/119,506,795.20 = 78,915,369.60/x
  3. Step 3: Cross multiply
    79,671,196.80x = 119,506,795.20 × 78,915,369.60
  4. Step 4: Simplify right side
    79,671,196.80x = 9,430,922,912,919,506
  5. Step 5: Solve for x
    x = 9,430,922,912,919,506/79,671,196.80
  6. Step 6: Final answer
    x = 118,373,054.40

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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.