Home / 129,147,485.31-193,618,925.55-64,417,971.51

Finding the Fourth Proportional to 129,147,485.31, 193,618,925.55 and 64,417,971.51

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Solution

The fourth proportional to 129,147,485.31, 193,618,925.55 and 64,417,971.51 is: 96,575,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,147,485.31 : 193,618,925.55 = 64,417,971.51 : x
  2. Step 2: Convert to fraction form
    129,147,485.31/193,618,925.55 = 64,417,971.51/x
  3. Step 3: Cross multiply
    129,147,485.31x = 193,618,925.55 × 64,417,971.51
  4. Step 4: Simplify right side
    129,147,485.31x = 12,472,538,429,876,712
  5. Step 5: Solve for x
    x = 12,472,538,429,876,712/129,147,485.31
  6. Step 6: Final answer
    x = 96,575,929.45

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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.