Home / 139,484,038.24-192,483,127.92-76,754,274.40

Finding the Fourth Proportional to 139,484,038.24, 192,483,127.92 and 76,754,274.40

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Solution

The fourth proportional to 139,484,038.24, 192,483,127.92 and 76,754,274.40 is: 105,918,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,484,038.24 : 192,483,127.92 = 76,754,274.40 : x
  2. Step 2: Convert to fraction form
    139,484,038.24/192,483,127.92 = 76,754,274.40/x
  3. Step 3: Cross multiply
    139,484,038.24x = 192,483,127.92 × 76,754,274.40
  4. Step 4: Simplify right side
    139,484,038.24x = 14,773,902,817,741,982
  5. Step 5: Solve for x
    x = 14,773,902,817,741,982/139,484,038.24
  6. Step 6: Final answer
    x = 105,918,232.68

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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.