Home / 1,223,792,654.48-1,688,824,513.32-666,873,979.28

Finding the Fourth Proportional to 1,223,792,654.48, 1,688,824,513.32 and 666,873,979.28

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Solution

The fourth proportional to 1,223,792,654.48, 1,688,824,513.32 and 666,873,979.28 is: 920,280,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,792,654.48 : 1,688,824,513.32 = 666,873,979.28 : x
  2. Step 2: Convert to fraction form
    1,223,792,654.48/1,688,824,513.32 = 666,873,979.28/x
  3. Step 3: Cross multiply
    1,223,792,654.48x = 1,688,824,513.32 × 666,873,979.28
  4. Step 4: Simplify right side
    1,223,792,654.48x = 1,126,233,123,503,317,632
  5. Step 5: Solve for x
    x = 1,126,233,123,503,317,632/1,223,792,654.48
  6. Step 6: Final answer
    x = 920,280,996.44

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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.