Home / 28,355,328.70-42,532,993.05-13,210,791.10

Finding the Fourth Proportional to 28,355,328.70, 42,532,993.05 and 13,210,791.10

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Solution

The fourth proportional to 28,355,328.70, 42,532,993.05 and 13,210,791.10 is: 19,816,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355,328.70 : 42,532,993.05 = 13,210,791.10 : x
  2. Step 2: Convert to fraction form
    28,355,328.70/42,532,993.05 = 13,210,791.10/x
  3. Step 3: Cross multiply
    28,355,328.70x = 42,532,993.05 × 13,210,791.10
  4. Step 4: Simplify right side
    28,355,328.70x = 561,894,486,041,301.81
  5. Step 5: Solve for x
    x = 561,894,486,041,301.81/28,355,328.70
  6. Step 6: Final answer
    x = 19,816,186.65

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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.