Home / 13,178,975,920.80-18,188,108,384.40-7,464,276,880.80

Finding the Fourth Proportional to 13,178,975,920.80, 18,188,108,384.40 and 7,464,276,880.80

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Solution

The fourth proportional to 13,178,975,920.80, 18,188,108,384.40 and 7,464,276,880.80 is: 10,301,337,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,975,920.80 : 18,188,108,384.40 = 7,464,276,880.80 : x
  2. Step 2: Convert to fraction form
    13,178,975,920.80/18,188,108,384.40 = 7,464,276,880.80/x
  3. Step 3: Cross multiply
    13,178,975,920.80x = 18,188,108,384.40 × 7,464,276,880.80
  4. Step 4: Simplify right side
    13,178,975,920.80x = 135,761,076,919,161,569,280
  5. Step 5: Solve for x
    x = 135,761,076,919,161,569,280/13,178,975,920.80
  6. Step 6: Final answer
    x = 10,301,337,352.39

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Double scale
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1.5x scale

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.