Home / 160,520,018.40-221,518,759.08-87,181,160.40

Finding the Fourth Proportional to 160,520,018.40, 221,518,759.08 and 87,181,160.40

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Solution

The fourth proportional to 160,520,018.40, 221,518,759.08 and 87,181,160.40 is: 120,310,617.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,520,018.40 : 221,518,759.08 = 87,181,160.40 : x
  2. Step 2: Convert to fraction form
    160,520,018.40/221,518,759.08 = 87,181,160.40/x
  3. Step 3: Cross multiply
    160,520,018.40x = 221,518,759.08 × 87,181,160.40
  4. Step 4: Simplify right side
    160,520,018.40x = 19,312,262,466,962,440
  5. Step 5: Solve for x
    x = 19,312,262,466,962,440/160,520,018.40
  6. Step 6: Final answer
    x = 120,310,617.08

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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.