Home / 84,989,334.40-127,484,001.60-66,495,187.60

Finding the Fourth Proportional to 84,989,334.40, 127,484,001.60 and 66,495,187.60

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Solution

The fourth proportional to 84,989,334.40, 127,484,001.60 and 66,495,187.60 is: 99,742,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,989,334.40 : 127,484,001.60 = 66,495,187.60 : x
  2. Step 2: Convert to fraction form
    84,989,334.40/127,484,001.60 = 66,495,187.60/x
  3. Step 3: Cross multiply
    84,989,334.40x = 127,484,001.60 × 66,495,187.60
  4. Step 4: Simplify right side
    84,989,334.40x = 8,477,072,602,390,700
  5. Step 5: Solve for x
    x = 8,477,072,602,390,700/84,989,334.40
  6. Step 6: Final answer
    x = 99,742,781.40

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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.