Home / 1,091,369,786.90-1,637,293,828.80-538,936,867.40

Finding the Fourth Proportional to 1,091,369,786.90, 1,637,293,828.80 and 538,936,867.40

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Solution

The fourth proportional to 1,091,369,786.90, 1,637,293,828.80 and 538,936,867.40 is: 808,523,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,369,786.90 : 1,637,293,828.80 = 538,936,867.40 : x
  2. Step 2: Convert to fraction form
    1,091,369,786.90/1,637,293,828.80 = 538,936,867.40/x
  3. Step 3: Cross multiply
    1,091,369,786.90x = 1,637,293,828.80 × 538,936,867.40
  4. Step 4: Simplify right side
    1,091,369,786.90x = 882,398,007,106,823,808
  5. Step 5: Solve for x
    x = 882,398,007,106,823,808/1,091,369,786.90
  6. Step 6: Final answer
    x = 808,523,396.65

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1.5x scale

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.