Home / 105,646,800.60-158,470,200.90-72,768,317.40

Finding the Fourth Proportional to 105,646,800.60, 158,470,200.90 and 72,768,317.40

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Solution

The fourth proportional to 105,646,800.60, 158,470,200.90 and 72,768,317.40 is: 109,152,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,646,800.60 : 158,470,200.90 = 72,768,317.40 : x
  2. Step 2: Convert to fraction form
    105,646,800.60/158,470,200.90 = 72,768,317.40/x
  3. Step 3: Cross multiply
    105,646,800.60x = 158,470,200.90 × 72,768,317.40
  4. Step 4: Simplify right side
    105,646,800.60x = 11,531,609,877,532,968
  5. Step 5: Solve for x
    x = 11,531,609,877,532,968/105,646,800.60
  6. Step 6: Final answer
    x = 109,152,476.10

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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.