Home / 30,549,009.60-45,822,477.60-7,830,129.60

Finding the Fourth Proportional to 30,549,009.60, 45,822,477.60 and 7,830,129.60

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Solution

The fourth proportional to 30,549,009.60, 45,822,477.60 and 7,830,129.60 is: 11,744,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,549,009.60 : 45,822,477.60 = 7,830,129.60 : x
  2. Step 2: Convert to fraction form
    30,549,009.60/45,822,477.60 = 7,830,129.60/x
  3. Step 3: Cross multiply
    30,549,009.60x = 45,822,477.60 × 7,830,129.60
  4. Step 4: Simplify right side
    30,549,009.60x = 358,795,938,201,096.94
  5. Step 5: Solve for x
    x = 358,795,938,201,096.94/30,549,009.60
  6. Step 6: Final answer
    x = 11,744,928.65

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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.