Home / 318,482,866,507.82-439,506,338,970.32-171,995,313,821.36

Finding the Fourth Proportional to 318,482,866,507.82, 439,506,338,970.32 and 171,995,313,821.36

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Solution

The fourth proportional to 318,482,866,507.82, 439,506,338,970.32 and 171,995,313,821.36 is: 237,353,523,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,482,866,507.82 : 439,506,338,970.32 = 171,995,313,821.36 : x
  2. Step 2: Convert to fraction form
    318,482,866,507.82/439,506,338,970.32 = 171,995,313,821.36/x
  3. Step 3: Cross multiply
    318,482,866,507.82x = 439,506,338,970.32 × 171,995,313,821.36
  4. Step 4: Simplify right side
    318,482,866,507.82x = 75,593,030,697,677,209,206,784
  5. Step 5: Solve for x
    x = 75,593,030,697,677,209,206,784/318,482,866,507.82
  6. Step 6: Final answer
    x = 237,353,523,995.05

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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.