Home / 156,668,100.32-216,206,845.02-86,102,430.08

Finding the Fourth Proportional to 156,668,100.32, 216,206,845.02 and 86,102,430.08

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Solution

The fourth proportional to 156,668,100.32, 216,206,845.02 and 86,102,430.08 is: 118,824,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,668,100.32 : 216,206,845.02 = 86,102,430.08 : x
  2. Step 2: Convert to fraction form
    156,668,100.32/216,206,845.02 = 86,102,430.08/x
  3. Step 3: Cross multiply
    156,668,100.32x = 216,206,845.02 × 86,102,430.08
  4. Step 4: Simplify right side
    156,668,100.32x = 18,615,934,756,151,948
  5. Step 5: Solve for x
    x = 18,615,934,756,151,948/156,668,100.32
  6. Step 6: Final answer
    x = 118,824,028.11

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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.