Home / 96,776,047.60-145,164,071.40-85,438,639.60

Finding the Fourth Proportional to 96,776,047.60, 145,164,071.40 and 85,438,639.60

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Solution

The fourth proportional to 96,776,047.60, 145,164,071.40 and 85,438,639.60 is: 128,157,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,776,047.60 : 145,164,071.40 = 85,438,639.60 : x
  2. Step 2: Convert to fraction form
    96,776,047.60/145,164,071.40 = 85,438,639.60/x
  3. Step 3: Cross multiply
    96,776,047.60x = 145,164,071.40 × 85,438,639.60
  4. Step 4: Simplify right side
    96,776,047.60x = 12,402,620,779,213,268
  5. Step 5: Solve for x
    x = 12,402,620,779,213,268/96,776,047.60
  6. Step 6: Final answer
    x = 128,157,959.40

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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.