Home / 189,421,427.70-284,132,141.55-107,792,090.10

Finding the Fourth Proportional to 189,421,427.70, 284,132,141.55 and 107,792,090.10

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Solution

The fourth proportional to 189,421,427.70, 284,132,141.55 and 107,792,090.10 is: 161,688,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,421,427.70 : 284,132,141.55 = 107,792,090.10 : x
  2. Step 2: Convert to fraction form
    189,421,427.70/284,132,141.55 = 107,792,090.10/x
  3. Step 3: Cross multiply
    189,421,427.70x = 284,132,141.55 × 107,792,090.10
  4. Step 4: Simplify right side
    189,421,427.70x = 30,627,197,402,263,552
  5. Step 5: Solve for x
    x = 30,627,197,402,263,552/189,421,427.70
  6. Step 6: Final answer
    x = 161,688,135.15

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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.