Home / 152,763,378.40-210,817,914-83,153,248.48

Finding the Fourth Proportional to 152,763,378.40, 210,817,914 and 83,153,248.48

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Solution

The fourth proportional to 152,763,378.40, 210,817,914 and 83,153,248.48 is: 114,753,906.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,763,378.40 : 210,817,914 = 83,153,248.48 : x
  2. Step 2: Convert to fraction form
    152,763,378.40/210,817,914 = 83,153,248.48/x
  3. Step 3: Cross multiply
    152,763,378.40x = 210,817,914 × 83,153,248.48
  4. Step 4: Simplify right side
    152,763,378.40x = 17,530,194,386,877,272
  5. Step 5: Solve for x
    x = 17,530,194,386,877,272/152,763,378.40
  6. Step 6: Final answer
    x = 114,753,906.14

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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.