Home / 42,912,000.80-64,368,001.20-42,513,869.60

Finding the Fourth Proportional to 42,912,000.80, 64,368,001.20 and 42,513,869.60

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Solution

The fourth proportional to 42,912,000.80, 64,368,001.20 and 42,513,869.60 is: 63,770,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,912,000.80 : 64,368,001.20 = 42,513,869.60 : x
  2. Step 2: Convert to fraction form
    42,912,000.80/64,368,001.20 = 42,513,869.60/x
  3. Step 3: Cross multiply
    42,912,000.80x = 64,368,001.20 × 42,513,869.60
  4. Step 4: Simplify right side
    42,912,000.80x = 2,736,532,809,429,443.50
  5. Step 5: Solve for x
    x = 2,736,532,809,429,443.50/42,912,000.80
  6. Step 6: Final answer
    x = 63,770,804.40

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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.