Home / 409,899,487.20-614,849,230.80-118,776,107.40

Finding the Fourth Proportional to 409,899,487.20, 614,849,230.80 and 118,776,107.40

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Solution

The fourth proportional to 409,899,487.20, 614,849,230.80 and 118,776,107.40 is: 178,164,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,899,487.20 : 614,849,230.80 = 118,776,107.40 : x
  2. Step 2: Convert to fraction form
    409,899,487.20/614,849,230.80 = 118,776,107.40/x
  3. Step 3: Cross multiply
    409,899,487.20x = 614,849,230.80 × 118,776,107.40
  4. Step 4: Simplify right side
    409,899,487.20x = 73,029,398,272,308,192
  5. Step 5: Solve for x
    x = 73,029,398,272,308,192/409,899,487.20
  6. Step 6: Final answer
    x = 178,164,161.10

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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.