Home / 191,808,012.80-287,712,019.20-109,926,732.80

Finding the Fourth Proportional to 191,808,012.80, 287,712,019.20 and 109,926,732.80

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Solution

The fourth proportional to 191,808,012.80, 287,712,019.20 and 109,926,732.80 is: 164,890,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,808,012.80 : 287,712,019.20 = 109,926,732.80 : x
  2. Step 2: Convert to fraction form
    191,808,012.80/287,712,019.20 = 109,926,732.80/x
  3. Step 3: Cross multiply
    191,808,012.80x = 287,712,019.20 × 109,926,732.80
  4. Step 4: Simplify right side
    191,808,012.80x = 31,627,242,257,946,868
  5. Step 5: Solve for x
    x = 31,627,242,257,946,868/191,808,012.80
  6. Step 6: Final answer
    x = 164,890,099.20

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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.