Home / 869,228,139.80-1,303,842,209.70-524,004,066.20

Finding the Fourth Proportional to 869,228,139.80, 1,303,842,209.70 and 524,004,066.20

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Solution

The fourth proportional to 869,228,139.80, 1,303,842,209.70 and 524,004,066.20 is: 786,006,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,228,139.80 : 1,303,842,209.70 = 524,004,066.20 : x
  2. Step 2: Convert to fraction form
    869,228,139.80/1,303,842,209.70 = 524,004,066.20/x
  3. Step 3: Cross multiply
    869,228,139.80x = 1,303,842,209.70 × 524,004,066.20
  4. Step 4: Simplify right side
    869,228,139.80x = 683,218,619,565,993,088
  5. Step 5: Solve for x
    x = 683,218,619,565,993,088/869,228,139.80
  6. Step 6: Final answer
    x = 786,006,099.30

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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.