Home / 477,289,436.81-658,716,762.36-289,112,209.30

Finding the Fourth Proportional to 477,289,436.81, 658,716,762.36 and 289,112,209.30

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Solution

The fourth proportional to 477,289,436.81, 658,716,762.36 and 289,112,209.30 is: 399,009,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,289,436.81 : 658,716,762.36 = 289,112,209.30 : x
  2. Step 2: Convert to fraction form
    477,289,436.81/658,716,762.36 = 289,112,209.30/x
  3. Step 3: Cross multiply
    477,289,436.81x = 658,716,762.36 × 289,112,209.30
  4. Step 4: Simplify right side
    477,289,436.81x = 190,443,058,470,512,416
  5. Step 5: Solve for x
    x = 190,443,058,470,512,416/477,289,436.81
  6. Step 6: Final answer
    x = 399,009,581.57

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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.