Home / 213,454,731,090.12-320,170,820,018.71-70,014,864,910.86

Finding the Fourth Proportional to 213,454,731,090.12, 320,170,820,018.71 and 70,014,864,910.86

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Solution

The fourth proportional to 213,454,731,090.12, 320,170,820,018.71 and 70,014,864,910.86 is: 105,018,598,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,454,731,090.12 : 320,170,820,018.71 = 70,014,864,910.86 : x
  2. Step 2: Convert to fraction form
    213,454,731,090.12/320,170,820,018.71 = 70,014,864,910.86/x
  3. Step 3: Cross multiply
    213,454,731,090.12x = 320,170,820,018.71 × 70,014,864,910.86
  4. Step 4: Simplify right side
    213,454,731,090.12x = 22,416,716,712,009,252,470,784
  5. Step 5: Solve for x
    x = 22,416,716,712,009,252,470,784/213,454,731,090.12
  6. Step 6: Final answer
    x = 105,018,598,545.59

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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.