Home / 128,012,953.10-176,658,314.98-69,275,602.63

Finding the Fourth Proportional to 128,012,953.10, 176,658,314.98 and 69,275,602.63

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Solution

The fourth proportional to 128,012,953.10, 176,658,314.98 and 69,275,602.63 is: 95,600,569.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,012,953.10 : 176,658,314.98 = 69,275,602.63 : x
  2. Step 2: Convert to fraction form
    128,012,953.10/176,658,314.98 = 69,275,602.63/x
  3. Step 3: Cross multiply
    128,012,953.10x = 176,658,314.98 × 69,275,602.63
  4. Step 4: Simplify right side
    128,012,953.10x = 12,238,111,229,839,854
  5. Step 5: Solve for x
    x = 12,238,111,229,839,854/128,012,953.10
  6. Step 6: Final answer
    x = 95,600,569.58

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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.