Home / 399,492,024.60-599,238,036.90-289,802,602.20

Finding the Fourth Proportional to 399,492,024.60, 599,238,036.90 and 289,802,602.20

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Solution

The fourth proportional to 399,492,024.60, 599,238,036.90 and 289,802,602.20 is: 434,703,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,492,024.60 : 599,238,036.90 = 289,802,602.20 : x
  2. Step 2: Convert to fraction form
    399,492,024.60/599,238,036.90 = 289,802,602.20/x
  3. Step 3: Cross multiply
    399,492,024.60x = 599,238,036.90 × 289,802,602.20
  4. Step 4: Simplify right side
    399,492,024.60x = 173,660,742,430,839,616
  5. Step 5: Solve for x
    x = 173,660,742,430,839,616/399,492,024.60
  6. Step 6: Final answer
    x = 434,703,903.30

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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.