Home / 1,310,554,166.85-1,808,554,002.21-715,839,030.45

Finding the Fourth Proportional to 1,310,554,166.85, 1,808,554,002.21 and 715,839,030.45

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Solution

The fourth proportional to 1,310,554,166.85, 1,808,554,002.21 and 715,839,030.45 is: 987,851,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,554,166.85 : 1,808,554,002.21 = 715,839,030.45 : x
  2. Step 2: Convert to fraction form
    1,310,554,166.85/1,808,554,002.21 = 715,839,030.45/x
  3. Step 3: Cross multiply
    1,310,554,166.85x = 1,808,554,002.21 × 715,839,030.45
  4. Step 4: Simplify right side
    1,310,554,166.85x = 1,294,633,543,458,473,728
  5. Step 5: Solve for x
    x = 1,294,633,543,458,473,728/1,310,554,166.85
  6. Step 6: Final answer
    x = 987,851,991.32

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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.