Home / 3,908,955,465.85-5,394,362,018.84-2,124,808,918.87

Finding the Fourth Proportional to 3,908,955,465.85, 5,394,362,018.84 and 2,124,808,918.87

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Solution

The fourth proportional to 3,908,955,465.85, 5,394,362,018.84 and 2,124,808,918.87 is: 2,932,238,197.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908,955,465.85 : 5,394,362,018.84 = 2,124,808,918.87 : x
  2. Step 2: Convert to fraction form
    3,908,955,465.85/5,394,362,018.84 = 2,124,808,918.87/x
  3. Step 3: Cross multiply
    3,908,955,465.85x = 5,394,362,018.84 × 2,124,808,918.87
  4. Step 4: Simplify right side
    3,908,955,465.85x = 11,461,988,529,244,811,264
  5. Step 5: Solve for x
    x = 11,461,988,529,244,811,264/3,908,955,465.85
  6. Step 6: Final answer
    x = 2,932,238,197.49

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1.5x scale

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.