Home / 898,139,027.80-1,347,208,541.70-438,372,141.40

Finding the Fourth Proportional to 898,139,027.80, 1,347,208,541.70 and 438,372,141.40

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Solution

The fourth proportional to 898,139,027.80, 1,347,208,541.70 and 438,372,141.40 is: 657,558,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,139,027.80 : 1,347,208,541.70 = 438,372,141.40 : x
  2. Step 2: Convert to fraction form
    898,139,027.80/1,347,208,541.70 = 438,372,141.40/x
  3. Step 3: Cross multiply
    898,139,027.80x = 1,347,208,541.70 × 438,372,141.40
  4. Step 4: Simplify right side
    898,139,027.80x = 590,578,693,337,400,192
  5. Step 5: Solve for x
    x = 590,578,693,337,400,192/898,139,027.80
  6. Step 6: Final answer
    x = 657,558,212.10

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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.