Home / 398,731,428.80-597,671,990.40-152,993,110.40

Finding the Fourth Proportional to 398,731,428.80, 597,671,990.40 and 152,993,110.40

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Solution

The fourth proportional to 398,731,428.80, 597,671,990.40 and 152,993,110.40 is: 229,326,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,731,428.80 : 597,671,990.40 = 152,993,110.40 : x
  2. Step 2: Convert to fraction form
    398,731,428.80/597,671,990.40 = 152,993,110.40/x
  3. Step 3: Cross multiply
    398,731,428.80x = 597,671,990.40 × 152,993,110.40
  4. Step 4: Simplify right side
    398,731,428.80x = 91,439,696,810,254,944
  5. Step 5: Solve for x
    x = 91,439,696,810,254,944/398,731,428.80
  6. Step 6: Final answer
    x = 229,326,534.62

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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.