Home / 156,959,257.86-216,602,056.89-86,393,359.32

Finding the Fourth Proportional to 156,959,257.86, 216,602,056.89 and 86,393,359.32

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Solution

The fourth proportional to 156,959,257.86, 216,602,056.89 and 86,393,359.32 is: 119,221,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959,257.86 : 216,602,056.89 = 86,393,359.32 : x
  2. Step 2: Convert to fraction form
    156,959,257.86/216,602,056.89 = 86,393,359.32/x
  3. Step 3: Cross multiply
    156,959,257.86x = 216,602,056.89 × 86,393,359.32
  4. Step 4: Simplify right side
    156,959,257.86x = 18,712,979,330,348,848
  5. Step 5: Solve for x
    x = 18,712,979,330,348,848/156,959,257.86
  6. Step 6: Final answer
    x = 119,221,889.72

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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.