Home / 311,086,032,981.34-429,367,788,017.18-189,124,852,244.40

Finding the Fourth Proportional to 311,086,032,981.34, 429,367,788,017.18 and 189,124,852,244.40

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Solution

The fourth proportional to 311,086,032,981.34, 429,367,788,017.18 and 189,124,852,244.40 is: 261,034,282,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,086,032,981.34 : 429,367,788,017.18 = 189,124,852,244.40 : x
  2. Step 2: Convert to fraction form
    311,086,032,981.34/429,367,788,017.18 = 189,124,852,244.40/x
  3. Step 3: Cross multiply
    311,086,032,981.34x = 429,367,788,017.18 × 189,124,852,244.40
  4. Step 4: Simplify right side
    311,086,032,981.34x = 81,204,119,467,254,028,959,744
  5. Step 5: Solve for x
    x = 81,204,119,467,254,028,959,744/311,086,032,981.34
  6. Step 6: Final answer
    x = 261,034,282,667.80

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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.