Home / 1,115,724,972.78-1,539,654,226.98-607,089,786.16

Finding the Fourth Proportional to 1,115,724,972.78, 1,539,654,226.98 and 607,089,786.16

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Solution

The fourth proportional to 1,115,724,972.78, 1,539,654,226.98 and 607,089,786.16 is: 837,758,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,724,972.78 : 1,539,654,226.98 = 607,089,786.16 : x
  2. Step 2: Convert to fraction form
    1,115,724,972.78/1,539,654,226.98 = 607,089,786.16/x
  3. Step 3: Cross multiply
    1,115,724,972.78x = 1,539,654,226.98 × 607,089,786.16
  4. Step 4: Simplify right side
    1,115,724,972.78x = 934,708,355,417,628,288
  5. Step 5: Solve for x
    x = 934,708,355,417,628,288/1,115,724,972.78
  6. Step 6: Final answer
    x = 837,758,747.20

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Double scale
Find fourth proportional to 1,115,724,973.78, 1,539,654,228.36 and 607,089,787.16
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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.