Home / 199,818,010.40-299,727,015.60-191,208,666.20

Finding the Fourth Proportional to 199,818,010.40, 299,727,015.60 and 191,208,666.20

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Solution

The fourth proportional to 199,818,010.40, 299,727,015.60 and 191,208,666.20 is: 286,812,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,818,010.40 : 299,727,015.60 = 191,208,666.20 : x
  2. Step 2: Convert to fraction form
    199,818,010.40/299,727,015.60 = 191,208,666.20/x
  3. Step 3: Cross multiply
    199,818,010.40x = 299,727,015.60 × 191,208,666.20
  4. Step 4: Simplify right side
    199,818,010.40x = 57,310,402,876,982,592
  5. Step 5: Solve for x
    x = 57,310,402,876,982,592/199,818,010.40
  6. Step 6: Final answer
    x = 286,812,999.30

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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.