Home / 839,808,740.70-1,259,713,111.05-533,320,811.10

Finding the Fourth Proportional to 839,808,740.70, 1,259,713,111.05 and 533,320,811.10

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Solution

The fourth proportional to 839,808,740.70, 1,259,713,111.05 and 533,320,811.10 is: 799,981,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,740.70 : 1,259,713,111.05 = 533,320,811.10 : x
  2. Step 2: Convert to fraction form
    839,808,740.70/1,259,713,111.05 = 533,320,811.10/x
  3. Step 3: Cross multiply
    839,808,740.70x = 1,259,713,111.05 × 533,320,811.10
  4. Step 4: Simplify right side
    839,808,740.70x = 671,831,218,138,490,368
  5. Step 5: Solve for x
    x = 671,831,218,138,490,368/839,808,740.70
  6. Step 6: Final answer
    x = 799,981,216.65

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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.