Home / 152,388,834.32-210,314,037.02-85,425,878.48

Finding the Fourth Proportional to 152,388,834.32, 210,314,037.02 and 85,425,878.48

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Solution

The fourth proportional to 152,388,834.32, 210,314,037.02 and 85,425,878.48 is: 117,897,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,388,834.32 : 210,314,037.02 = 85,425,878.48 : x
  2. Step 2: Convert to fraction form
    152,388,834.32/210,314,037.02 = 85,425,878.48/x
  3. Step 3: Cross multiply
    152,388,834.32x = 210,314,037.02 × 85,425,878.48
  4. Step 4: Simplify right side
    152,388,834.32x = 17,966,261,369,108,744
  5. Step 5: Solve for x
    x = 17,966,261,369,108,744/152,388,834.32
  6. Step 6: Final answer
    x = 117,897,491.96

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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.