Home / 152,388,815.84-210,314,011.49-85,425,859.98

Finding the Fourth Proportional to 152,388,815.84, 210,314,011.49 and 85,425,859.98

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Solution

The fourth proportional to 152,388,815.84, 210,314,011.49 and 85,425,859.98 is: 117,897,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,388,815.84 : 210,314,011.49 = 85,425,859.98 : x
  2. Step 2: Convert to fraction form
    152,388,815.84/210,314,011.49 = 85,425,859.98/x
  3. Step 3: Cross multiply
    152,388,815.84x = 210,314,011.49 × 85,425,859.98
  4. Step 4: Simplify right side
    152,388,815.84x = 17,966,255,296,949,724
  5. Step 5: Solve for x
    x = 17,966,255,296,949,724/152,388,815.84
  6. Step 6: Final answer
    x = 117,897,466.42

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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.