Home / 515,854,835.80-772,774,484.10-310,773,722.20

Finding the Fourth Proportional to 515,854,835.80, 772,774,484.10 and 310,773,722.20

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Solution

The fourth proportional to 515,854,835.80, 772,774,484.10 and 310,773,722.20 is: 465,553,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,854,835.80 : 772,774,484.10 = 310,773,722.20 : x
  2. Step 2: Convert to fraction form
    515,854,835.80/772,774,484.10 = 310,773,722.20/x
  3. Step 3: Cross multiply
    515,854,835.80x = 772,774,484.10 × 310,773,722.20
  4. Step 4: Simplify right side
    515,854,835.80x = 240,158,002,844,941,728
  5. Step 5: Solve for x
    x = 240,158,002,844,941,728/515,854,835.80
  6. Step 6: Final answer
    x = 465,553,458.41

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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.