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Finding the Fourth Proportional to 774,145,005.60, 1,159,873,815.60 and 725,772,064.80

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Solution

The fourth proportional to 774,145,005.60, 1,159,873,815.60 and 725,772,064.80 is: 1,087,398,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,145,005.60 : 1,159,873,815.60 = 725,772,064.80 : x
  2. Step 2: Convert to fraction form
    774,145,005.60/1,159,873,815.60 = 725,772,064.80/x
  3. Step 3: Cross multiply
    774,145,005.60x = 1,159,873,815.60 × 725,772,064.80
  4. Step 4: Simplify right side
    774,145,005.60x = 841,804,014,055,466,368
  5. Step 5: Solve for x
    x = 841,804,014,055,466,368/774,145,005.60
  6. Step 6: Final answer
    x = 1,087,398,365.90

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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.