Home / 153,208,857.60-211,410,763.72-86,214,875.76

Finding the Fourth Proportional to 153,208,857.60, 211,410,763.72 and 86,214,875.76

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Solution

The fourth proportional to 153,208,857.60, 211,410,763.72 and 86,214,875.76 is: 118,966,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,208,857.60 : 211,410,763.72 = 86,214,875.76 : x
  2. Step 2: Convert to fraction form
    153,208,857.60/211,410,763.72 = 86,214,875.76/x
  3. Step 3: Cross multiply
    153,208,857.60x = 211,410,763.72 × 86,214,875.76
  4. Step 4: Simplify right side
    153,208,857.60x = 18,226,752,728,446,516
  5. Step 5: Solve for x
    x = 18,226,752,728,446,516/153,208,857.60
  6. Step 6: Final answer
    x = 118,966,703.45

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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.