Home / 1,223,792,646.48-1,688,824,502.28-666,873,971.28

Finding the Fourth Proportional to 1,223,792,646.48, 1,688,824,502.28 and 666,873,971.28

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Solution

The fourth proportional to 1,223,792,646.48, 1,688,824,502.28 and 666,873,971.28 is: 920,280,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,792,646.48 : 1,688,824,502.28 = 666,873,971.28 : x
  2. Step 2: Convert to fraction form
    1,223,792,646.48/1,688,824,502.28 = 666,873,971.28/x
  3. Step 3: Cross multiply
    1,223,792,646.48x = 1,688,824,502.28 × 666,873,971.28
  4. Step 4: Simplify right side
    1,223,792,646.48x = 1,126,233,102,630,432,896
  5. Step 5: Solve for x
    x = 1,126,233,102,630,432,896/1,223,792,646.48
  6. Step 6: Final answer
    x = 920,280,985.40

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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.