Home / 103,390,989.57-142,677,108-56,349,548.37

Finding the Fourth Proportional to 103,390,989.57, 142,677,108 and 56,349,548.37

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Solution

The fourth proportional to 103,390,989.57, 142,677,108 and 56,349,548.37 is: 77,761,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,390,989.57 : 142,677,108 = 56,349,548.37 : x
  2. Step 2: Convert to fraction form
    103,390,989.57/142,677,108 = 56,349,548.37/x
  3. Step 3: Cross multiply
    103,390,989.57x = 142,677,108 × 56,349,548.37
  4. Step 4: Simplify right side
    103,390,989.57x = 8,039,790,598,537,714
  5. Step 5: Solve for x
    x = 8,039,790,598,537,714/103,390,989.57
  6. Step 6: Final answer
    x = 77,761,037.32

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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.