Home / 205,128,009.40-307,692,014.10-61,520,841.40

Finding the Fourth Proportional to 205,128,009.40, 307,692,014.10 and 61,520,841.40

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Solution

The fourth proportional to 205,128,009.40, 307,692,014.10 and 61,520,841.40 is: 92,281,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,128,009.40 : 307,692,014.10 = 61,520,841.40 : x
  2. Step 2: Convert to fraction form
    205,128,009.40/307,692,014.10 = 61,520,841.40/x
  3. Step 3: Cross multiply
    205,128,009.40x = 307,692,014.10 × 61,520,841.40
  4. Step 4: Simplify right side
    205,128,009.40x = 18,929,471,599,492,664
  5. Step 5: Solve for x
    x = 18,929,471,599,492,664/205,128,009.40
  6. Step 6: Final answer
    x = 92,281,262.10

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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.