Home / 42,768,048.40-64,152,072.60-12,475,911.40

Finding the Fourth Proportional to 42,768,048.40, 64,152,072.60 and 12,475,911.40

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Solution

The fourth proportional to 42,768,048.40, 64,152,072.60 and 12,475,911.40 is: 18,713,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,048.40 : 64,152,072.60 = 12,475,911.40 : x
  2. Step 2: Convert to fraction form
    42,768,048.40/64,152,072.60 = 12,475,911.40/x
  3. Step 3: Cross multiply
    42,768,048.40x = 64,152,072.60 × 12,475,911.40
  4. Step 4: Simplify right side
    42,768,048.40x = 800,355,573,883,967.62
  5. Step 5: Solve for x
    x = 800,355,573,883,967.62/42,768,048.40
  6. Step 6: Final answer
    x = 18,713,867.10

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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.