Home / 638,480,235.93-881,102,335.86-345,124,803.93

Finding the Fourth Proportional to 638,480,235.93, 881,102,335.86 and 345,124,803.93

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Solution

The fourth proportional to 638,480,235.93, 881,102,335.86 and 345,124,803.93 is: 476,272,018.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,480,235.93 : 881,102,335.86 = 345,124,803.93 : x
  2. Step 2: Convert to fraction form
    638,480,235.93/881,102,335.86 = 345,124,803.93/x
  3. Step 3: Cross multiply
    638,480,235.93x = 881,102,335.86 × 345,124,803.93
  4. Step 4: Simplify right side
    638,480,235.93x = 304,090,270,905,947,520
  5. Step 5: Solve for x
    x = 304,090,270,905,947,520/638,480,235.93
  6. Step 6: Final answer
    x = 476,272,018.76

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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.