Home / 515,041,801.62-772,903,032.03-242,490,513.30

Finding the Fourth Proportional to 515,041,801.62, 772,903,032.03 and 242,490,513.30

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Solution

The fourth proportional to 515,041,801.62, 772,903,032.03 and 242,490,513.30 is: 363,896,002.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,041,801.62 : 772,903,032.03 = 242,490,513.30 : x
  2. Step 2: Convert to fraction form
    515,041,801.62/772,903,032.03 = 242,490,513.30/x
  3. Step 3: Cross multiply
    515,041,801.62x = 772,903,032.03 × 242,490,513.30
  4. Step 4: Simplify right side
    515,041,801.62x = 187,421,652,968,081,056
  5. Step 5: Solve for x
    x = 187,421,652,968,081,056/515,041,801.62
  6. Step 6: Final answer
    x = 363,896,002.96

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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.