Home / 498,226,992.70-687,574,137.93-286,533,988.59

Finding the Fourth Proportional to 498,226,992.70, 687,574,137.93 and 286,533,988.59

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Solution

The fourth proportional to 498,226,992.70, 687,574,137.93 and 286,533,988.59 is: 395,428,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,226,992.70 : 687,574,137.93 = 286,533,988.59 : x
  2. Step 2: Convert to fraction form
    498,226,992.70/687,574,137.93 = 286,533,988.59/x
  3. Step 3: Cross multiply
    498,226,992.70x = 687,574,137.93 × 286,533,988.59
  4. Step 4: Simplify right side
    498,226,992.70x = 197,013,360,191,654,016
  5. Step 5: Solve for x
    x = 197,013,360,191,654,016/498,226,992.70
  6. Step 6: Final answer
    x = 395,428,917.10

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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.