Home / 390,986,269,711.10-586,162,915,218.80-122,236,913,903.40

Finding the Fourth Proportional to 390,986,269,711.10, 586,162,915,218.80 and 122,236,913,903.40

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Solution

The fourth proportional to 390,986,269,711.10, 586,162,915,218.80 and 122,236,913,903.40 is: 183,256,424,461.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,986,269,711.10 : 586,162,915,218.80 = 122,236,913,903.40 : x
  2. Step 2: Convert to fraction form
    390,986,269,711.10/586,162,915,218.80 = 122,236,913,903.40/x
  3. Step 3: Cross multiply
    390,986,269,711.10x = 586,162,915,218.80 × 122,236,913,903.40
  4. Step 4: Simplify right side
    390,986,269,711.10x = 71,650,745,800,966,413,484,032
  5. Step 5: Solve for x
    x = 71,650,745,800,966,413,484,032/390,986,269,711.10
  6. Step 6: Final answer
    x = 183,256,424,461.94

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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.