Home / 66,428,932,035.60-99,643,398,053.40-19,900,209,603.60

Finding the Fourth Proportional to 66,428,932,035.60, 99,643,398,053.40 and 19,900,209,603.60

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Solution

The fourth proportional to 66,428,932,035.60, 99,643,398,053.40 and 19,900,209,603.60 is: 29,850,314,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,932,035.60 : 99,643,398,053.40 = 19,900,209,603.60 : x
  2. Step 2: Convert to fraction form
    66,428,932,035.60/99,643,398,053.40 = 19,900,209,603.60/x
  3. Step 3: Cross multiply
    66,428,932,035.60x = 99,643,398,053.40 × 19,900,209,603.60
  4. Step 4: Simplify right side
    66,428,932,035.60x = 1,982,924,506,877,608,067,072
  5. Step 5: Solve for x
    x = 1,982,924,506,877,608,067,072/66,428,932,035.60
  6. Step 6: Final answer
    x = 29,850,314,405.40

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1.5x scale

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.