Home / 218,681,897-301,787,316.42-120,903,051.56

Finding the Fourth Proportional to 218,681,897, 301,787,316.42 and 120,903,051.56

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Solution

The fourth proportional to 218,681,897, 301,787,316.42 and 120,903,051.56 is: 166,849,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,681,897 : 301,787,316.42 = 120,903,051.56 : x
  2. Step 2: Convert to fraction form
    218,681,897/301,787,316.42 = 120,903,051.56/x
  3. Step 3: Cross multiply
    218,681,897x = 301,787,316.42 × 120,903,051.56
  4. Step 4: Simplify right side
    218,681,897x = 36,487,007,477,281,296
  5. Step 5: Solve for x
    x = 36,487,007,477,281,296/218,681,897
  6. Step 6: Final answer
    x = 166,849,693.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.