Home / 445,826,741.40-668,740,112.10-417,128,927.40

Finding the Fourth Proportional to 445,826,741.40, 668,740,112.10 and 417,128,927.40

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Solution

The fourth proportional to 445,826,741.40, 668,740,112.10 and 417,128,927.40 is: 625,693,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,826,741.40 : 668,740,112.10 = 417,128,927.40 : x
  2. Step 2: Convert to fraction form
    445,826,741.40/668,740,112.10 = 417,128,927.40/x
  3. Step 3: Cross multiply
    445,826,741.40x = 668,740,112.10 × 417,128,927.40
  4. Step 4: Simplify right side
    445,826,741.40x = 278,950,845,669,628,768
  5. Step 5: Solve for x
    x = 278,950,845,669,628,768/445,826,741.40
  6. Step 6: Final answer
    x = 625,693,391.10

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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.