Home / 839,939,644.70-1,259,909,467.05-549,701,999.90

Finding the Fourth Proportional to 839,939,644.70, 1,259,909,467.05 and 549,701,999.90

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Solution

The fourth proportional to 839,939,644.70, 1,259,909,467.05 and 549,701,999.90 is: 824,552,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,939,644.70 : 1,259,909,467.05 = 549,701,999.90 : x
  2. Step 2: Convert to fraction form
    839,939,644.70/1,259,909,467.05 = 549,701,999.90/x
  3. Step 3: Cross multiply
    839,939,644.70x = 1,259,909,467.05 × 549,701,999.90
  4. Step 4: Simplify right side
    839,939,644.70x = 692,574,753,730,328,064
  5. Step 5: Solve for x
    x = 692,574,753,730,328,064/839,939,644.70
  6. Step 6: Final answer
    x = 824,552,999.85

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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.