Home / 1,178,239,082.09-1,627,522,009.86-873,330,231.50

Finding the Fourth Proportional to 1,178,239,082.09, 1,627,522,009.86 and 873,330,231.50

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Solution

The fourth proportional to 1,178,239,082.09, 1,627,522,009.86 and 873,330,231.50 is: 1,206,346,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,239,082.09 : 1,627,522,009.86 = 873,330,231.50 : x
  2. Step 2: Convert to fraction form
    1,178,239,082.09/1,627,522,009.86 = 873,330,231.50/x
  3. Step 3: Cross multiply
    1,178,239,082.09x = 1,627,522,009.86 × 873,330,231.50
  4. Step 4: Simplify right side
    1,178,239,082.09x = 1,421,364,173,634,241,280
  5. Step 5: Solve for x
    x = 1,421,364,173,634,241,280/1,178,239,082.09
  6. Step 6: Final answer
    x = 1,206,346,144.21

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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.