Home / 18,912,030.40-28,368,045.60-5,265,150.40

Finding the Fourth Proportional to 18,912,030.40, 28,368,045.60 and 5,265,150.40

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Solution

The fourth proportional to 18,912,030.40, 28,368,045.60 and 5,265,150.40 is: 7,897,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912,030.40 : 28,368,045.60 = 5,265,150.40 : x
  2. Step 2: Convert to fraction form
    18,912,030.40/28,368,045.60 = 5,265,150.40/x
  3. Step 3: Cross multiply
    18,912,030.40x = 28,368,045.60 × 5,265,150.40
  4. Step 4: Simplify right side
    18,912,030.40x = 149,362,026,638,058.25
  5. Step 5: Solve for x
    x = 149,362,026,638,058.25/18,912,030.40
  6. Step 6: Final answer
    x = 7,897,725.60

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1.5x scale

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.