Home / 1,475,139,698.20-2,212,821,521.70-439,919,781.40

Finding the Fourth Proportional to 1,475,139,698.20, 2,212,821,521.70 and 439,919,781.40

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Solution

The fourth proportional to 1,475,139,698.20, 2,212,821,521.70 and 439,919,781.40 is: 659,913,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475,139,698.20 : 2,212,821,521.70 = 439,919,781.40 : x
  2. Step 2: Convert to fraction form
    1,475,139,698.20/2,212,821,521.70 = 439,919,781.40/x
  3. Step 3: Cross multiply
    1,475,139,698.20x = 2,212,821,521.70 × 439,919,781.40
  4. Step 4: Simplify right side
    1,475,139,698.20x = 973,463,960,103,479,168
  5. Step 5: Solve for x
    x = 973,463,960,103,479,168/1,475,139,698.20
  6. Step 6: Final answer
    x = 659,913,065.38

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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.