Home / 419,173,501.28-578,445,866.16-240,586,784.60

Finding the Fourth Proportional to 419,173,501.28, 578,445,866.16 and 240,586,784.60

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Solution

The fourth proportional to 419,173,501.28, 578,445,866.16 and 240,586,784.60 is: 332,001,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,173,501.28 : 578,445,866.16 = 240,586,784.60 : x
  2. Step 2: Convert to fraction form
    419,173,501.28/578,445,866.16 = 240,586,784.60/x
  3. Step 3: Cross multiply
    419,173,501.28x = 578,445,866.16 × 240,586,784.60
  4. Step 4: Simplify right side
    419,173,501.28x = 139,166,431,004,596,336
  5. Step 5: Solve for x
    x = 139,166,431,004,596,336/419,173,501.28
  6. Step 6: Final answer
    x = 332,001,976.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.