Home / 646,824,822.80-970,363,205.40-186,778,000.40

Finding the Fourth Proportional to 646,824,822.80, 970,363,205.40 and 186,778,000.40

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Solution

The fourth proportional to 646,824,822.80, 970,363,205.40 and 186,778,000.40 is: 280,203,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,824,822.80 : 970,363,205.40 = 186,778,000.40 : x
  2. Step 2: Convert to fraction form
    646,824,822.80/970,363,205.40 = 186,778,000.40/x
  3. Step 3: Cross multiply
    646,824,822.80x = 970,363,205.40 × 186,778,000.40
  4. Step 4: Simplify right side
    646,824,822.80x = 181,242,499,166,346,496
  5. Step 5: Solve for x
    x = 181,242,499,166,346,496/646,824,822.80
  6. Step 6: Final answer
    x = 280,203,376.21

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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.