Home / 309,293,420-426,813,994.08-170,063,206.88

Finding the Fourth Proportional to 309,293,420, 426,813,994.08 and 170,063,206.88

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Solution

The fourth proportional to 309,293,420, 426,813,994.08 and 170,063,206.88 is: 234,681,218.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,293,420 : 426,813,994.08 = 170,063,206.88 : x
  2. Step 2: Convert to fraction form
    309,293,420/426,813,994.08 = 170,063,206.88/x
  3. Step 3: Cross multiply
    309,293,420x = 426,813,994.08 × 170,063,206.88
  4. Step 4: Simplify right side
    309,293,420x = 72,585,356,574,506,128
  5. Step 5: Solve for x
    x = 72,585,356,574,506,128/309,293,420
  6. Step 6: Final answer
    x = 234,681,218.16

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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.