Home / 1,310,554,164.60-1,808,553,999.11-715,839,028.20

Finding the Fourth Proportional to 1,310,554,164.60, 1,808,553,999.11 and 715,839,028.20

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Solution

The fourth proportional to 1,310,554,164.60, 1,808,553,999.11 and 715,839,028.20 is: 987,851,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,554,164.60 : 1,808,553,999.11 = 715,839,028.20 : x
  2. Step 2: Convert to fraction form
    1,310,554,164.60/1,808,553,999.11 = 715,839,028.20/x
  3. Step 3: Cross multiply
    1,310,554,164.60x = 1,808,553,999.11 × 715,839,028.20
  4. Step 4: Simplify right side
    1,310,554,164.60x = 1,294,633,537,166,546,944
  5. Step 5: Solve for x
    x = 1,294,633,537,166,546,944/1,310,554,164.60
  6. Step 6: Final answer
    x = 987,851,988.22

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Double scale
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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.