Home / 1,115,724,967.79-1,539,654,220.09-607,089,781.15

Finding the Fourth Proportional to 1,115,724,967.79, 1,539,654,220.09 and 607,089,781.15

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Solution

The fourth proportional to 1,115,724,967.79, 1,539,654,220.09 and 607,089,781.15 is: 837,758,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,724,967.79 : 1,539,654,220.09 = 607,089,781.15 : x
  2. Step 2: Convert to fraction form
    1,115,724,967.79/1,539,654,220.09 = 607,089,781.15/x
  3. Step 3: Cross multiply
    1,115,724,967.79x = 1,539,654,220.09 × 607,089,781.15
  4. Step 4: Simplify right side
    1,115,724,967.79x = 934,708,343,519,594,368
  5. Step 5: Solve for x
    x = 934,708,343,519,594,368/1,115,724,967.79
  6. Step 6: Final answer
    x = 837,758,740.29

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Double scale
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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.