Home / 1,250,956,456.90-1,726,315,173.43-686,450,783.68

Finding the Fourth Proportional to 1,250,956,456.90, 1,726,315,173.43 and 686,450,783.68

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Solution

The fourth proportional to 1,250,956,456.90, 1,726,315,173.43 and 686,450,783.68 is: 947,299,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,956,456.90 : 1,726,315,173.43 = 686,450,783.68 : x
  2. Step 2: Convert to fraction form
    1,250,956,456.90/1,726,315,173.43 = 686,450,783.68/x
  3. Step 3: Cross multiply
    1,250,956,456.90x = 1,726,315,173.43 × 686,450,783.68
  4. Step 4: Simplify right side
    1,250,956,456.90x = 1,185,030,403,685,341,952
  5. Step 5: Solve for x
    x = 1,185,030,403,685,341,952/1,250,956,456.90
  6. Step 6: Final answer
    x = 947,299,482.05

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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.