Home / 136,142,372.16-187,877,672.64-74,262,985.92

Finding the Fourth Proportional to 136,142,372.16, 187,877,672.64 and 74,262,985.92

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Solution

The fourth proportional to 136,142,372.16, 187,877,672.64 and 74,262,985.92 is: 102,483,574.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,142,372.16 : 187,877,672.64 = 74,262,985.92 : x
  2. Step 2: Convert to fraction form
    136,142,372.16/187,877,672.64 = 74,262,985.92/x
  3. Step 3: Cross multiply
    136,142,372.16x = 187,877,672.64 × 74,262,985.92
  4. Step 4: Simplify right side
    136,142,372.16x = 13,952,356,957,946,688
  5. Step 5: Solve for x
    x = 13,952,356,957,946,688/136,142,372.16
  6. Step 6: Final answer
    x = 102,483,574.63

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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.