Home / 898,139,030.80-1,347,208,546.20-438,372,144.40

Finding the Fourth Proportional to 898,139,030.80, 1,347,208,546.20 and 438,372,144.40

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Solution

The fourth proportional to 898,139,030.80, 1,347,208,546.20 and 438,372,144.40 is: 657,558,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,139,030.80 : 1,347,208,546.20 = 438,372,144.40 : x
  2. Step 2: Convert to fraction form
    898,139,030.80/1,347,208,546.20 = 438,372,144.40/x
  3. Step 3: Cross multiply
    898,139,030.80x = 1,347,208,546.20 × 438,372,144.40
  4. Step 4: Simplify right side
    898,139,030.80x = 590,578,699,351,700,480
  5. Step 5: Solve for x
    x = 590,578,699,351,700,480/898,139,030.80
  6. Step 6: Final answer
    x = 657,558,216.60

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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.