Home / 810,875,127.11-1,119,091,078.74-493,357,914.56

Finding the Fourth Proportional to 810,875,127.11, 1,119,091,078.74 and 493,357,914.56

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Solution

The fourth proportional to 810,875,127.11, 1,119,091,078.74 and 493,357,914.56 is: 680,884,666.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,875,127.11 : 1,119,091,078.74 = 493,357,914.56 : x
  2. Step 2: Convert to fraction form
    810,875,127.11/1,119,091,078.74 = 493,357,914.56/x
  3. Step 3: Cross multiply
    810,875,127.11x = 1,119,091,078.74 × 493,357,914.56
  4. Step 4: Simplify right side
    810,875,127.11x = 552,112,440,804,271,680
  5. Step 5: Solve for x
    x = 552,112,440,804,271,680/810,875,127.11
  6. Step 6: Final answer
    x = 680,884,666.89

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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.