Home / 395,363,061.21-545,589,199.93-216,740,840.53

Finding the Fourth Proportional to 395,363,061.21, 545,589,199.93 and 216,740,840.53

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Solution

The fourth proportional to 395,363,061.21, 545,589,199.93 and 216,740,840.53 is: 299,095,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,363,061.21 : 545,589,199.93 = 216,740,840.53 : x
  2. Step 2: Convert to fraction form
    395,363,061.21/545,589,199.93 = 216,740,840.53/x
  3. Step 3: Cross multiply
    395,363,061.21x = 545,589,199.93 × 216,740,840.53
  4. Step 4: Simplify right side
    395,363,061.21x = 118,251,461,776,918,400
  5. Step 5: Solve for x
    x = 118,251,461,776,918,400/395,363,061.21
  6. Step 6: Final answer
    x = 299,095,877.63

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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.