Home / 155,164,188.40-232,713,623.40-78,415,068.40

Finding the Fourth Proportional to 155,164,188.40, 232,713,623.40 and 78,415,068.40

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Solution

The fourth proportional to 155,164,188.40, 232,713,623.40 and 78,415,068.40 is: 117,606,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,164,188.40 : 232,713,623.40 = 78,415,068.40 : x
  2. Step 2: Convert to fraction form
    155,164,188.40/232,713,623.40 = 78,415,068.40/x
  3. Step 3: Cross multiply
    155,164,188.40x = 232,713,623.40 × 78,415,068.40
  4. Step 4: Simplify right side
    155,164,188.40x = 18,248,254,696,522,844
  5. Step 5: Solve for x
    x = 18,248,254,696,522,844/155,164,188.40
  6. Step 6: Final answer
    x = 117,606,097.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.