Home / 148,943,961.40-223,415,942.10-72,416,457.40

Finding the Fourth Proportional to 148,943,961.40, 223,415,942.10 and 72,416,457.40

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Solution

The fourth proportional to 148,943,961.40, 223,415,942.10 and 72,416,457.40 is: 108,624,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,943,961.40 : 223,415,942.10 = 72,416,457.40 : x
  2. Step 2: Convert to fraction form
    148,943,961.40/223,415,942.10 = 72,416,457.40/x
  3. Step 3: Cross multiply
    148,943,961.40x = 223,415,942.10 × 72,416,457.40
  4. Step 4: Simplify right side
    148,943,961.40x = 16,178,991,053,565,518
  5. Step 5: Solve for x
    x = 16,178,991,053,565,518/148,943,961.40
  6. Step 6: Final answer
    x = 108,624,686.10

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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.