Home / 855,976,278.88-1,282,119,603.76-578,099,478.72

Finding the Fourth Proportional to 855,976,278.88, 1,282,119,603.76 and 578,099,478.72

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Solution

The fourth proportional to 855,976,278.88, 1,282,119,603.76 and 578,099,478.72 is: 865,903,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,976,278.88 : 1,282,119,603.76 = 578,099,478.72 : x
  2. Step 2: Convert to fraction form
    855,976,278.88/1,282,119,603.76 = 578,099,478.72/x
  3. Step 3: Cross multiply
    855,976,278.88x = 1,282,119,603.76 × 578,099,478.72
  4. Step 4: Simplify right side
    855,976,278.88x = 741,192,674,590,348,928
  5. Step 5: Solve for x
    x = 741,192,674,590,348,928/855,976,278.88
  6. Step 6: Final answer
    x = 865,903,288.30

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1.5x scale

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.