Home / 395,139,254.71-545,291,745.51-216,527,498.25

Finding the Fourth Proportional to 395,139,254.71, 545,291,745.51 and 216,527,498.25

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Solution

The fourth proportional to 395,139,254.71, 545,291,745.51 and 216,527,498.25 is: 298,807,714.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,139,254.71 : 545,291,745.51 = 216,527,498.25 : x
  2. Step 2: Convert to fraction form
    395,139,254.71/545,291,745.51 = 216,527,498.25/x
  3. Step 3: Cross multiply
    395,139,254.71x = 545,291,745.51 × 216,527,498.25
  4. Step 4: Simplify right side
    395,139,254.71x = 118,070,657,470,426,368
  5. Step 5: Solve for x
    x = 118,070,657,470,426,368/395,139,254.71
  6. Step 6: Final answer
    x = 298,807,714.15

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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.