Home / 145,035,355.60-217,804,975.80-77,010,907.60

Finding the Fourth Proportional to 145,035,355.60, 217,804,975.80 and 77,010,907.60

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Solution

The fourth proportional to 145,035,355.60, 217,804,975.80 and 77,010,907.60 is: 115,650,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,035,355.60 : 217,804,975.80 = 77,010,907.60 : x
  2. Step 2: Convert to fraction form
    145,035,355.60/217,804,975.80 = 77,010,907.60/x
  3. Step 3: Cross multiply
    145,035,355.60x = 217,804,975.80 × 77,010,907.60
  4. Step 4: Simplify right side
    145,035,355.60x = 16,773,358,866,154,036
  5. Step 5: Solve for x
    x = 16,773,358,866,154,036/145,035,355.60
  6. Step 6: Final answer
    x = 115,650,137.84

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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.