Home / 78,617,220.77-108,496,618.59-43,334,946.30

Finding the Fourth Proportional to 78,617,220.77, 108,496,618.59 and 43,334,946.30

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Solution

The fourth proportional to 78,617,220.77, 108,496,618.59 and 43,334,946.30 is: 59,804,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,617,220.77 : 108,496,618.59 = 43,334,946.30 : x
  2. Step 2: Convert to fraction form
    78,617,220.77/108,496,618.59 = 43,334,946.30/x
  3. Step 3: Cross multiply
    78,617,220.77x = 108,496,618.59 × 43,334,946.30
  4. Step 4: Simplify right side
    78,617,220.77x = 4,701,695,140,257,871
  5. Step 5: Solve for x
    x = 4,701,695,140,257,871/78,617,220.77
  6. Step 6: Final answer
    x = 59,804,901.45

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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.