Home / 191,856,134.70-287,721,216.45-70,671,840.30

Finding the Fourth Proportional to 191,856,134.70, 287,721,216.45 and 70,671,840.30

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Solution

The fourth proportional to 191,856,134.70, 287,721,216.45 and 70,671,840.30 is: 105,984,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,856,134.70 : 287,721,216.45 = 70,671,840.30 : x
  2. Step 2: Convert to fraction form
    191,856,134.70/287,721,216.45 = 70,671,840.30/x
  3. Step 3: Cross multiply
    191,856,134.70x = 287,721,216.45 × 70,671,840.30
  4. Step 4: Simplify right side
    191,856,134.70x = 20,333,787,859,876,132
  5. Step 5: Solve for x
    x = 20,333,787,859,876,132/191,856,134.70
  6. Step 6: Final answer
    x = 105,984,559.17

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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.