Home / 898,611,765.48-1,240,060,448.58-502,138,012.98

Finding the Fourth Proportional to 898,611,765.48, 1,240,060,448.58 and 502,138,012.98

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Solution

The fourth proportional to 898,611,765.48, 1,240,060,448.58 and 502,138,012.98 is: 692,937,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,611,765.48 : 1,240,060,448.58 = 502,138,012.98 : x
  2. Step 2: Convert to fraction form
    898,611,765.48/1,240,060,448.58 = 502,138,012.98/x
  3. Step 3: Cross multiply
    898,611,765.48x = 1,240,060,448.58 × 502,138,012.98
  4. Step 4: Simplify right side
    898,611,765.48x = 622,681,489,625,048,704
  5. Step 5: Solve for x
    x = 622,681,489,625,048,704/898,611,765.48
  6. Step 6: Final answer
    x = 692,937,165.46

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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.