Home / 128,485,659,541.87-177,314,462,437.58-70,616,090,574.55

Finding the Fourth Proportional to 128,485,659,541.87, 177,314,462,437.58 and 70,616,090,574.55

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Solution

The fourth proportional to 128,485,659,541.87, 177,314,462,437.58 and 70,616,090,574.55 is: 97,452,542,052.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,485,659,541.87 : 177,314,462,437.58 = 70,616,090,574.55 : x
  2. Step 2: Convert to fraction form
    128,485,659,541.87/177,314,462,437.58 = 70,616,090,574.55/x
  3. Step 3: Cross multiply
    128,485,659,541.87x = 177,314,462,437.58 × 70,616,090,574.55
  4. Step 4: Simplify right side
    128,485,659,541.87x = 12,521,254,139,669,793,210,368
  5. Step 5: Solve for x
    x = 12,521,254,139,669,793,210,368/128,485,659,541.87
  6. Step 6: Final answer
    x = 97,452,542,052.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.