Home / 156,919,543.02-216,543,518.91-86,348,558.70

Finding the Fourth Proportional to 156,919,543.02, 216,543,518.91 and 86,348,558.70

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Solution

The fourth proportional to 156,919,543.02, 216,543,518.91 and 86,348,558.70 is: 119,158,011.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919,543.02 : 216,543,518.91 = 86,348,558.70 : x
  2. Step 2: Convert to fraction form
    156,919,543.02/216,543,518.91 = 86,348,558.70/x
  3. Step 3: Cross multiply
    156,919,543.02x = 216,543,518.91 × 86,348,558.70
  4. Step 4: Simplify right side
    156,919,543.02x = 18,698,220,753,704,696
  5. Step 5: Solve for x
    x = 18,698,220,753,704,696/156,919,543.02
  6. Step 6: Final answer
    x = 119,158,011.77

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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.