Home / 390,889,422.41-586,333,637.82-99,756,551.70

Finding the Fourth Proportional to 390,889,422.41, 586,333,637.82 and 99,756,551.70

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Solution

The fourth proportional to 390,889,422.41, 586,333,637.82 and 99,756,551.70 is: 149,634,701.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,889,422.41 : 586,333,637.82 = 99,756,551.70 : x
  2. Step 2: Convert to fraction form
    390,889,422.41/586,333,637.82 = 99,756,551.70/x
  3. Step 3: Cross multiply
    390,889,422.41x = 586,333,637.82 × 99,756,551.70
  4. Step 4: Simplify right side
    390,889,422.41x = 58,490,621,854,639,912
  5. Step 5: Solve for x
    x = 58,490,621,854,639,912/390,889,422.41
  6. Step 6: Final answer
    x = 149,634,701.02

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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.