Home / 153,311,258.76-211,561,534.50-83,683,187.52

Finding the Fourth Proportional to 153,311,258.76, 211,561,534.50 and 83,683,187.52

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Solution

The fourth proportional to 153,311,258.76, 211,561,534.50 and 83,683,187.52 is: 115,478,430.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,311,258.76 : 211,561,534.50 = 83,683,187.52 : x
  2. Step 2: Convert to fraction form
    153,311,258.76/211,561,534.50 = 83,683,187.52/x
  3. Step 3: Cross multiply
    153,311,258.76x = 211,561,534.50 × 83,683,187.52
  4. Step 4: Simplify right side
    153,311,258.76x = 17,704,143,563,582,448
  5. Step 5: Solve for x
    x = 17,704,143,563,582,448/153,311,258.76
  6. Step 6: Final answer
    x = 115,478,430.66

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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.