Home / 415,507,237.80-623,260,856.70-399,634,866.60

Finding the Fourth Proportional to 415,507,237.80, 623,260,856.70 and 399,634,866.60

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Solution

The fourth proportional to 415,507,237.80, 623,260,856.70 and 399,634,866.60 is: 599,452,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,507,237.80 : 623,260,856.70 = 399,634,866.60 : x
  2. Step 2: Convert to fraction form
    415,507,237.80/623,260,856.70 = 399,634,866.60/x
  3. Step 3: Cross multiply
    415,507,237.80x = 623,260,856.70 × 399,634,866.60
  4. Step 4: Simplify right side
    415,507,237.80x = 249,076,769,324,306,240
  5. Step 5: Solve for x
    x = 249,076,769,324,306,240/415,507,237.80
  6. Step 6: Final answer
    x = 599,452,299.90

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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.