Home / 90,518,127.74-135,864,879.37-85,602,298.49

Finding the Fourth Proportional to 90,518,127.74, 135,864,879.37 and 85,602,298.49

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Solution

The fourth proportional to 90,518,127.74, 135,864,879.37 and 85,602,298.49 is: 128,486,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,518,127.74 : 135,864,879.37 = 85,602,298.49 : x
  2. Step 2: Convert to fraction form
    90,518,127.74/135,864,879.37 = 85,602,298.49/x
  3. Step 3: Cross multiply
    90,518,127.74x = 135,864,879.37 × 85,602,298.49
  4. Step 4: Simplify right side
    90,518,127.74x = 11,630,345,958,138,582
  5. Step 5: Solve for x
    x = 11,630,345,958,138,582/90,518,127.74
  6. Step 6: Final answer
    x = 128,486,373.38

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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.