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Finding the Fourth Proportional to 84,240,159.15, 118,276,345.05 and 84,240,159.15

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Solution

The fourth proportional to 84,240,159.15, 118,276,345.05 and 84,240,159.15 is: 118,276,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,240,159.15 : 118,276,345.05 = 84,240,159.15 : x
  2. Step 2: Convert to fraction form
    84,240,159.15/118,276,345.05 = 84,240,159.15/x
  3. Step 3: Cross multiply
    84,240,159.15x = 118,276,345.05 × 84,240,159.15
  4. Step 4: Simplify right side
    84,240,159.15x = 9,963,618,130,692,316
  5. Step 5: Solve for x
    x = 9,963,618,130,692,316/84,240,159.15
  6. Step 6: Final answer
    x = 118,276,345.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.