Home / 199,818,009.40-299,727,014.10-191,208,665.20

Finding the Fourth Proportional to 199,818,009.40, 299,727,014.10 and 191,208,665.20

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Solution

The fourth proportional to 199,818,009.40, 299,727,014.10 and 191,208,665.20 is: 286,812,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,818,009.40 : 299,727,014.10 = 191,208,665.20 : x
  2. Step 2: Convert to fraction form
    199,818,009.40/299,727,014.10 = 191,208,665.20/x
  3. Step 3: Cross multiply
    199,818,009.40x = 299,727,014.10 × 191,208,665.20
  4. Step 4: Simplify right side
    199,818,009.40x = 57,310,402,290,442,584
  5. Step 5: Solve for x
    x = 57,310,402,290,442,584/199,818,009.40
  6. Step 6: Final answer
    x = 286,812,997.80

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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.