Home / 682,525,124.47-942,535,155.56-645,341,261.62

Finding the Fourth Proportional to 682,525,124.47, 942,535,155.56 and 645,341,261.62

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Solution

The fourth proportional to 682,525,124.47, 942,535,155.56 and 645,341,261.62 is: 891,185,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,525,124.47 : 942,535,155.56 = 645,341,261.62 : x
  2. Step 2: Convert to fraction form
    682,525,124.47/942,535,155.56 = 645,341,261.62/x
  3. Step 3: Cross multiply
    682,525,124.47x = 942,535,155.56 × 645,341,261.62
  4. Step 4: Simplify right side
    682,525,124.47x = 608,256,826,408,244,864
  5. Step 5: Solve for x
    x = 608,256,826,408,244,864/682,525,124.47
  6. Step 6: Final answer
    x = 891,185,986.57

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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.