Home / 390,889,179.83-586,333,274.48-99,756,309.06

Finding the Fourth Proportional to 390,889,179.83, 586,333,274.48 and 99,756,309.06

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Solution

The fourth proportional to 390,889,179.83, 586,333,274.48 and 99,756,309.06 is: 149,634,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,889,179.83 : 586,333,274.48 = 99,756,309.06 : x
  2. Step 2: Convert to fraction form
    390,889,179.83/586,333,274.48 = 99,756,309.06/x
  3. Step 3: Cross multiply
    390,889,179.83x = 586,333,274.48 × 99,756,309.06
  4. Step 4: Simplify right side
    390,889,179.83x = 58,490,443,341,188,696
  5. Step 5: Solve for x
    x = 58,490,443,341,188,696/390,889,179.83
  6. Step 6: Final answer
    x = 149,634,337.20

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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.