Home / 399,492,025.10-599,238,037.65-289,802,602.70

Finding the Fourth Proportional to 399,492,025.10, 599,238,037.65 and 289,802,602.70

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Solution

The fourth proportional to 399,492,025.10, 599,238,037.65 and 289,802,602.70 is: 434,703,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,492,025.10 : 599,238,037.65 = 289,802,602.70 : x
  2. Step 2: Convert to fraction form
    399,492,025.10/599,238,037.65 = 289,802,602.70/x
  3. Step 3: Cross multiply
    399,492,025.10x = 599,238,037.65 × 289,802,602.70
  4. Step 4: Simplify right side
    399,492,025.10x = 173,660,742,947,810,592
  5. Step 5: Solve for x
    x = 173,660,742,947,810,592/399,492,025.10
  6. Step 6: Final answer
    x = 434,703,904.05

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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.