Home / 390,444,720,415.16-585,893,033,458.34-163,783,872,628.54

Finding the Fourth Proportional to 390,444,720,415.16, 585,893,033,458.34 and 163,783,872,628.54

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Solution

The fourth proportional to 390,444,720,415.16, 585,893,033,458.34 and 163,783,872,628.54 is: 245,770,591,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,444,720,415.16 : 585,893,033,458.34 = 163,783,872,628.54 : x
  2. Step 2: Convert to fraction form
    390,444,720,415.16/585,893,033,458.34 = 163,783,872,628.54/x
  3. Step 3: Cross multiply
    390,444,720,415.16x = 585,893,033,458.34 × 163,783,872,628.54
  4. Step 4: Simplify right side
    390,444,720,415.16x = 95,959,829,965,889,679,130,624
  5. Step 5: Solve for x
    x = 95,959,829,965,889,679,130,624/390,444,720,415.16
  6. Step 6: Final answer
    x = 245,770,591,708.49

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1.5x scale

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.