Home / 147,624,007.70-221,436,011.55-78,749,254.10

Finding the Fourth Proportional to 147,624,007.70, 221,436,011.55 and 78,749,254.10

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Solution

The fourth proportional to 147,624,007.70, 221,436,011.55 and 78,749,254.10 is: 118,123,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,624,007.70 : 221,436,011.55 = 78,749,254.10 : x
  2. Step 2: Convert to fraction form
    147,624,007.70/221,436,011.55 = 78,749,254.10/x
  3. Step 3: Cross multiply
    147,624,007.70x = 221,436,011.55 × 78,749,254.10
  4. Step 4: Simplify right side
    147,624,007.70x = 17,437,920,740,441,484
  5. Step 5: Solve for x
    x = 17,437,920,740,441,484/147,624,007.70
  6. Step 6: Final answer
    x = 118,123,881.15

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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.