Home / 199,323,135.40-298,984,703.10-190,713,791.20

Finding the Fourth Proportional to 199,323,135.40, 298,984,703.10 and 190,713,791.20

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Solution

The fourth proportional to 199,323,135.40, 298,984,703.10 and 190,713,791.20 is: 286,070,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,323,135.40 : 298,984,703.10 = 190,713,791.20 : x
  2. Step 2: Convert to fraction form
    199,323,135.40/298,984,703.10 = 190,713,791.20/x
  3. Step 3: Cross multiply
    199,323,135.40x = 298,984,703.10 × 190,713,791.20
  4. Step 4: Simplify right side
    199,323,135.40x = 57,020,506,239,007,392
  5. Step 5: Solve for x
    x = 57,020,506,239,007,392/199,323,135.40
  6. Step 6: Final answer
    x = 286,070,686.80

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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.