Home / 817,887,754,212.60-1,226,831,631,318.90-778,835,768,921.40

Finding the Fourth Proportional to 817,887,754,212.60, 1,226,831,631,318.90 and 778,835,768,921.40

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Solution

The fourth proportional to 817,887,754,212.60, 1,226,831,631,318.90 and 778,835,768,921.40 is: 1,168,253,653,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,887,754,212.60 : 1,226,831,631,318.90 = 778,835,768,921.40 : x
  2. Step 2: Convert to fraction form
    817,887,754,212.60/1,226,831,631,318.90 = 778,835,768,921.40/x
  3. Step 3: Cross multiply
    817,887,754,212.60x = 1,226,831,631,318.90 × 778,835,768,921.40
  4. Step 4: Simplify right side
    817,887,754,212.60x = 955,500,356,915,350,908,960,768
  5. Step 5: Solve for x
    x = 955,500,356,915,350,908,960,768/817,887,754,212.60
  6. Step 6: Final answer
    x = 1,168,253,653,382.10

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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.