Home / 82,997,009.20-124,495,513.80-39,855,809.80

Finding the Fourth Proportional to 82,997,009.20, 124,495,513.80 and 39,855,809.80

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Solution

The fourth proportional to 82,997,009.20, 124,495,513.80 and 39,855,809.80 is: 59,783,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,997,009.20 : 124,495,513.80 = 39,855,809.80 : x
  2. Step 2: Convert to fraction form
    82,997,009.20/124,495,513.80 = 39,855,809.80/x
  3. Step 3: Cross multiply
    82,997,009.20x = 124,495,513.80 × 39,855,809.80
  4. Step 4: Simplify right side
    82,997,009.20x = 4,961,869,518,966,075
  5. Step 5: Solve for x
    x = 4,961,869,518,966,075/82,997,009.20
  6. Step 6: Final answer
    x = 59,783,714.70

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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.