Home / 620,525,511.76-856,331,111.88-342,077,022.16

Finding the Fourth Proportional to 620,525,511.76, 856,331,111.88 and 342,077,022.16

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Solution

The fourth proportional to 620,525,511.76, 856,331,111.88 and 342,077,022.16 is: 472,069,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,525,511.76 : 856,331,111.88 = 342,077,022.16 : x
  2. Step 2: Convert to fraction form
    620,525,511.76/856,331,111.88 = 342,077,022.16/x
  3. Step 3: Cross multiply
    620,525,511.76x = 856,331,111.88 × 342,077,022.16
  4. Step 4: Simplify right side
    620,525,511.76x = 292,931,196,734,872,192
  5. Step 5: Solve for x
    x = 292,931,196,734,872,192/620,525,511.76
  6. Step 6: Final answer
    x = 472,069,546.19

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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.