Home / 390,889,202.39-586,333,308.44-99,756,331.70

Finding the Fourth Proportional to 390,889,202.39, 586,333,308.44 and 99,756,331.70

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Solution

The fourth proportional to 390,889,202.39, 586,333,308.44 and 99,756,331.70 is: 149,634,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,889,202.39 : 586,333,308.44 = 99,756,331.70 : x
  2. Step 2: Convert to fraction form
    390,889,202.39/586,333,308.44 = 99,756,331.70/x
  3. Step 3: Cross multiply
    390,889,202.39x = 586,333,308.44 × 99,756,331.70
  4. Step 4: Simplify right side
    390,889,202.39x = 58,490,460,000,068,592
  5. Step 5: Solve for x
    x = 58,490,460,000,068,592/390,889,202.39
  6. Step 6: Final answer
    x = 149,634,371.18

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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.