Home / 128,765,325.60-193,147,988.40-98,532,237.60

Finding the Fourth Proportional to 128,765,325.60, 193,147,988.40 and 98,532,237.60

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Solution

The fourth proportional to 128,765,325.60, 193,147,988.40 and 98,532,237.60 is: 147,798,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,765,325.60 : 193,147,988.40 = 98,532,237.60 : x
  2. Step 2: Convert to fraction form
    128,765,325.60/193,147,988.40 = 98,532,237.60/x
  3. Step 3: Cross multiply
    128,765,325.60x = 193,147,988.40 × 98,532,237.60
  4. Step 4: Simplify right side
    128,765,325.60x = 19,031,303,484,990,844
  5. Step 5: Solve for x
    x = 19,031,303,484,990,844/128,765,325.60
  6. Step 6: Final answer
    x = 147,798,356.40

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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.