Home / 191,679,086.34-287,416,332.36-99,469,980.72

Finding the Fourth Proportional to 191,679,086.34, 287,416,332.36 and 99,469,980.72

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Solution

The fourth proportional to 191,679,086.34, 287,416,332.36 and 99,469,980.72 is: 149,151,884.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,679,086.34 : 287,416,332.36 = 99,469,980.72 : x
  2. Step 2: Convert to fraction form
    191,679,086.34/287,416,332.36 = 99,469,980.72/x
  3. Step 3: Cross multiply
    191,679,086.34x = 287,416,332.36 × 99,469,980.72
  4. Step 4: Simplify right side
    191,679,086.34x = 28,589,297,038,462,312
  5. Step 5: Solve for x
    x = 28,589,297,038,462,312/191,679,086.34
  6. Step 6: Final answer
    x = 149,151,884.98

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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.