Home / 346,386,570.89-478,009,662.32-187,612,743.78

Finding the Fourth Proportional to 346,386,570.89, 478,009,662.32 and 187,612,743.78

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Solution

The fourth proportional to 346,386,570.89, 478,009,662.32 and 187,612,743.78 is: 258,903,525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,386,570.89 : 478,009,662.32 = 187,612,743.78 : x
  2. Step 2: Convert to fraction form
    346,386,570.89/478,009,662.32 = 187,612,743.78/x
  3. Step 3: Cross multiply
    346,386,570.89x = 478,009,662.32 × 187,612,743.78
  4. Step 4: Simplify right side
    346,386,570.89x = 89,680,704,301,675,504
  5. Step 5: Solve for x
    x = 89,680,704,301,675,504/346,386,570.89
  6. Step 6: Final answer
    x = 258,903,525.25

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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.