Home / 201,880,815.40-302,608,646.70-79,011,656.20

Finding the Fourth Proportional to 201,880,815.40, 302,608,646.70 and 79,011,656.20

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Solution

The fourth proportional to 201,880,815.40, 302,608,646.70 and 79,011,656.20 is: 118,434,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,880,815.40 : 302,608,646.70 = 79,011,656.20 : x
  2. Step 2: Convert to fraction form
    201,880,815.40/302,608,646.70 = 79,011,656.20/x
  3. Step 3: Cross multiply
    201,880,815.40x = 302,608,646.70 × 79,011,656.20
  4. Step 4: Simplify right side
    201,880,815.40x = 23,909,610,356,207,664
  5. Step 5: Solve for x
    x = 23,909,610,356,207,664/201,880,815.40
  6. Step 6: Final answer
    x = 118,434,286.63

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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.