Home / 1,310,554,167.85-1,808,554,003.59-715,839,031.45

Finding the Fourth Proportional to 1,310,554,167.85, 1,808,554,003.59 and 715,839,031.45

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Solution

The fourth proportional to 1,310,554,167.85, 1,808,554,003.59 and 715,839,031.45 is: 987,851,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,554,167.85 : 1,808,554,003.59 = 715,839,031.45 : x
  2. Step 2: Convert to fraction form
    1,310,554,167.85/1,808,554,003.59 = 715,839,031.45/x
  3. Step 3: Cross multiply
    1,310,554,167.85x = 1,808,554,003.59 × 715,839,031.45
  4. Step 4: Simplify right side
    1,310,554,167.85x = 1,294,633,546,254,885,376
  5. Step 5: Solve for x
    x = 1,294,633,546,254,885,376/1,310,554,167.85
  6. Step 6: Final answer
    x = 987,851,992.70

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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.