Home / 99,852,840.40-149,779,260.60-84,773,621.20

Finding the Fourth Proportional to 99,852,840.40, 149,779,260.60 and 84,773,621.20

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Solution

The fourth proportional to 99,852,840.40, 149,779,260.60 and 84,773,621.20 is: 127,160,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,852,840.40 : 149,779,260.60 = 84,773,621.20 : x
  2. Step 2: Convert to fraction form
    99,852,840.40/149,779,260.60 = 84,773,621.20/x
  3. Step 3: Cross multiply
    99,852,840.40x = 149,779,260.60 × 84,773,621.20
  4. Step 4: Simplify right side
    99,852,840.40x = 12,697,330,301,720,484
  5. Step 5: Solve for x
    x = 12,697,330,301,720,484/99,852,840.40
  6. Step 6: Final answer
    x = 127,160,431.80

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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.