Home / 86,938,484.37-119,977,985.67-47,781,649.05

Finding the Fourth Proportional to 86,938,484.37, 119,977,985.67 and 47,781,649.05

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Solution

The fourth proportional to 86,938,484.37, 119,977,985.67 and 47,781,649.05 is: 65,940,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,484.37 : 119,977,985.67 = 47,781,649.05 : x
  2. Step 2: Convert to fraction form
    86,938,484.37/119,977,985.67 = 47,781,649.05/x
  3. Step 3: Cross multiply
    86,938,484.37x = 119,977,985.67 × 47,781,649.05
  4. Step 4: Simplify right side
    86,938,484.37x = 5,732,746,005,009,869
  5. Step 5: Solve for x
    x = 5,732,746,005,009,869/86,938,484.37
  6. Step 6: Final answer
    x = 65,940,257.03

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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.