Home / 193,087,611.40-289,631,417.10-71,893,985.80

Finding the Fourth Proportional to 193,087,611.40, 289,631,417.10 and 71,893,985.80

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Solution

The fourth proportional to 193,087,611.40, 289,631,417.10 and 71,893,985.80 is: 107,840,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,087,611.40 : 289,631,417.10 = 71,893,985.80 : x
  2. Step 2: Convert to fraction form
    193,087,611.40/289,631,417.10 = 71,893,985.80/x
  3. Step 3: Cross multiply
    193,087,611.40x = 289,631,417.10 × 71,893,985.80
  4. Step 4: Simplify right side
    193,087,611.40x = 20,822,756,988,221,280
  5. Step 5: Solve for x
    x = 20,822,756,988,221,280/193,087,611.40
  6. Step 6: Final answer
    x = 107,840,978.70

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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.