Home / 19,320,975.60-28,984,962.60-9,712,172.40

Finding the Fourth Proportional to 19,320,975.60, 28,984,962.60 and 9,712,172.40

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Solution

The fourth proportional to 19,320,975.60, 28,984,962.60 and 9,712,172.40 is: 14,570,017.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,975.60 : 28,984,962.60 = 9,712,172.40 : x
  2. Step 2: Convert to fraction form
    19,320,975.60/28,984,962.60 = 9,712,172.40/x
  3. Step 3: Cross multiply
    19,320,975.60x = 28,984,962.60 × 9,712,172.40
  4. Step 4: Simplify right side
    19,320,975.60x = 281,506,953,778,752.25
  5. Step 5: Solve for x
    x = 281,506,953,778,752.25/19,320,975.60
  6. Step 6: Final answer
    x = 14,570,017.56

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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.