Home / 81,205,271,153.58-121,758,260,905.35-38,723,161,707.93

Finding the Fourth Proportional to 81,205,271,153.58, 121,758,260,905.35 and 38,723,161,707.93

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Solution

The fourth proportional to 81,205,271,153.58, 121,758,260,905.35 and 38,723,161,707.93 is: 58,061,068,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,205,271,153.58 : 121,758,260,905.35 = 38,723,161,707.93 : x
  2. Step 2: Convert to fraction form
    81,205,271,153.58/121,758,260,905.35 = 38,723,161,707.93/x
  3. Step 3: Cross multiply
    81,205,271,153.58x = 121,758,260,905.35 × 38,723,161,707.93
  4. Step 4: Simplify right side
    81,205,271,153.58x = 4,714,864,826,314,199,662,592
  5. Step 5: Solve for x
    x = 4,714,864,826,314,199,662,592/81,205,271,153.58
  6. Step 6: Final answer
    x = 58,061,068,688.47

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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.