Home / 671,529,356.16-926,714,187.62-389,439,048.76

Finding the Fourth Proportional to 671,529,356.16, 926,714,187.62 and 389,439,048.76

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Solution

The fourth proportional to 671,529,356.16, 926,714,187.62 and 389,439,048.76 is: 537,428,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,529,356.16 : 926,714,187.62 = 389,439,048.76 : x
  2. Step 2: Convert to fraction form
    671,529,356.16/926,714,187.62 = 389,439,048.76/x
  3. Step 3: Cross multiply
    671,529,356.16x = 926,714,187.62 × 389,439,048.76
  4. Step 4: Simplify right side
    671,529,356.16x = 360,898,691,699,128,960
  5. Step 5: Solve for x
    x = 360,898,691,699,128,960/671,529,356.16
  6. Step 6: Final answer
    x = 537,428,019.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.