Home / 128,765,323.60-193,147,985.40-98,532,235.60

Finding the Fourth Proportional to 128,765,323.60, 193,147,985.40 and 98,532,235.60

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Solution

The fourth proportional to 128,765,323.60, 193,147,985.40 and 98,532,235.60 is: 147,798,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,765,323.60 : 193,147,985.40 = 98,532,235.60 : x
  2. Step 2: Convert to fraction form
    128,765,323.60/193,147,985.40 = 98,532,235.60/x
  3. Step 3: Cross multiply
    128,765,323.60x = 193,147,985.40 × 98,532,235.60
  4. Step 4: Simplify right side
    128,765,323.60x = 19,031,302,803,098,160
  5. Step 5: Solve for x
    x = 19,031,302,803,098,160/128,765,323.60
  6. Step 6: Final answer
    x = 147,798,353.40

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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.