Home / 2,620,688,128.92-3,616,638,854.54-1,549,909,351.64

Finding the Fourth Proportional to 2,620,688,128.92, 3,616,638,854.54 and 1,549,909,351.64

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Solution

The fourth proportional to 2,620,688,128.92, 3,616,638,854.54 and 1,549,909,351.64 is: 2,138,927,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,688,128.92 : 3,616,638,854.54 = 1,549,909,351.64 : x
  2. Step 2: Convert to fraction form
    2,620,688,128.92/3,616,638,854.54 = 1,549,909,351.64/x
  3. Step 3: Cross multiply
    2,620,688,128.92x = 3,616,638,854.54 × 1,549,909,351.64
  4. Step 4: Simplify right side
    2,620,688,128.92x = 5,605,462,382,157,415,424
  5. Step 5: Solve for x
    x = 5,605,462,382,157,415,424/2,620,688,128.92
  6. Step 6: Final answer
    x = 2,138,927,680.98

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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.