Home / 28,688,132,750.08-42,943,939,629.60-18,718,108,533.76

Finding the Fourth Proportional to 28,688,132,750.08, 42,943,939,629.60 and 18,718,108,533.76

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Solution

The fourth proportional to 28,688,132,750.08, 42,943,939,629.60 and 18,718,108,533.76 is: 28,019,576,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688,132,750.08 : 42,943,939,629.60 = 18,718,108,533.76 : x
  2. Step 2: Convert to fraction form
    28,688,132,750.08/42,943,939,629.60 = 18,718,108,533.76/x
  3. Step 3: Cross multiply
    28,688,132,750.08x = 42,943,939,629.60 × 18,718,108,533.76
  4. Step 4: Simplify right side
    28,688,132,750.08x = 803,829,322,854,089,883,648
  5. Step 5: Solve for x
    x = 803,829,322,854,089,883,648/28,688,132,750.08
  6. Step 6: Final answer
    x = 28,019,576,242.79

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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.