Home / 1,112,892,009.36-1,677,337,363.86-959,299,670.40

Finding the Fourth Proportional to 1,112,892,009.36, 1,677,337,363.86 and 959,299,670.40

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Solution

The fourth proportional to 1,112,892,009.36, 1,677,337,363.86 and 959,299,670.40 is: 1,445,844,849.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,892,009.36 : 1,677,337,363.86 = 959,299,670.40 : x
  2. Step 2: Convert to fraction form
    1,112,892,009.36/1,677,337,363.86 = 959,299,670.40/x
  3. Step 3: Cross multiply
    1,112,892,009.36x = 1,677,337,363.86 × 959,299,670.40
  4. Step 4: Simplify right side
    1,112,892,009.36x = 1,609,069,180,300,502,784
  5. Step 5: Solve for x
    x = 1,609,069,180,300,502,784/1,112,892,009.36
  6. Step 6: Final answer
    x = 1,445,844,849.97

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.