Home / 438,927,900.80-657,720,004.80-414,741,430.40

Finding the Fourth Proportional to 438,927,900.80, 657,720,004.80 and 414,741,430.40

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Solution

The fourth proportional to 438,927,900.80, 657,720,004.80 and 414,741,430.40 is: 621,477,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,927,900.80 : 657,720,004.80 = 414,741,430.40 : x
  2. Step 2: Convert to fraction form
    438,927,900.80/657,720,004.80 = 414,741,430.40/x
  3. Step 3: Cross multiply
    438,927,900.80x = 657,720,004.80 × 414,741,430.40
  4. Step 4: Simplify right side
    438,927,900.80x = 272,783,735,593,446,816
  5. Step 5: Solve for x
    x = 272,783,735,593,446,816/438,927,900.80
  6. Step 6: Final answer
    x = 621,477,320.30

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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.