Home / 191,411,013.23-287,176,749.21-68,505,538.89

Finding the Fourth Proportional to 191,411,013.23, 287,176,749.21 and 68,505,538.89

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Solution

The fourth proportional to 191,411,013.23, 287,176,749.21 and 68,505,538.89 is: 102,779,864.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,411,013.23 : 287,176,749.21 = 68,505,538.89 : x
  2. Step 2: Convert to fraction form
    191,411,013.23/287,176,749.21 = 68,505,538.89/x
  3. Step 3: Cross multiply
    191,411,013.23x = 287,176,749.21 × 68,505,538.89
  4. Step 4: Simplify right side
    191,411,013.23x = 19,673,197,961,309,432
  5. Step 5: Solve for x
    x = 19,673,197,961,309,432/191,411,013.23
  6. Step 6: Final answer
    x = 102,779,864.28

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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.