Home / 276,735,888,911.15-415,103,833,366.73-77,989,178,054.15

Finding the Fourth Proportional to 276,735,888,911.15, 415,103,833,366.73 and 77,989,178,054.15

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Solution

The fourth proportional to 276,735,888,911.15, 415,103,833,366.73 and 77,989,178,054.15 is: 116,983,767,081.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,735,888,911.15 : 415,103,833,366.73 = 77,989,178,054.15 : x
  2. Step 2: Convert to fraction form
    276,735,888,911.15/415,103,833,366.73 = 77,989,178,054.15/x
  3. Step 3: Cross multiply
    276,735,888,911.15x = 415,103,833,366.73 × 77,989,178,054.15
  4. Step 4: Simplify right side
    276,735,888,911.15x = 32,373,606,771,398,115,590,144
  5. Step 5: Solve for x
    x = 32,373,606,771,398,115,590,144/276,735,888,911.15
  6. Step 6: Final answer
    x = 116,983,767,081.23

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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.