Home / 698,625,814.70-1,047,938,722.05-426,528,022.70

Finding the Fourth Proportional to 698,625,814.70, 1,047,938,722.05 and 426,528,022.70

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Solution

The fourth proportional to 698,625,814.70, 1,047,938,722.05 and 426,528,022.70 is: 639,792,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,625,814.70 : 1,047,938,722.05 = 426,528,022.70 : x
  2. Step 2: Convert to fraction form
    698,625,814.70/1,047,938,722.05 = 426,528,022.70/x
  3. Step 3: Cross multiply
    698,625,814.70x = 1,047,938,722.05 × 426,528,022.70
  4. Step 4: Simplify right side
    698,625,814.70x = 446,975,231,026,751,360
  5. Step 5: Solve for x
    x = 446,975,231,026,751,360/698,625,814.70
  6. Step 6: Final answer
    x = 639,792,034.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.