Home / 138,699,901.18-191,333,296.35-85,759,685.85

Finding the Fourth Proportional to 138,699,901.18, 191,333,296.35 and 85,759,685.85

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Solution

The fourth proportional to 138,699,901.18, 191,333,296.35 and 85,759,685.85 is: 118,303,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,699,901.18 : 191,333,296.35 = 85,759,685.85 : x
  2. Step 2: Convert to fraction form
    138,699,901.18/191,333,296.35 = 85,759,685.85/x
  3. Step 3: Cross multiply
    138,699,901.18x = 191,333,296.35 × 85,759,685.85
  4. Step 4: Simplify right side
    138,699,901.18x = 16,408,683,387,620,950
  5. Step 5: Solve for x
    x = 16,408,683,387,620,950/138,699,901.18
  6. Step 6: Final answer
    x = 118,303,497.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.