Home / 30,501,070.95-45,759,356.60-8,641,426.40

Finding the Fourth Proportional to 30,501,070.95, 45,759,356.60 and 8,641,426.40

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Solution

The fourth proportional to 30,501,070.95, 45,759,356.60 and 8,641,426.40 is: 12,964,335.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,501,070.95 : 45,759,356.60 = 8,641,426.40 : x
  2. Step 2: Convert to fraction form
    30,501,070.95/45,759,356.60 = 8,641,426.40/x
  3. Step 3: Cross multiply
    30,501,070.95x = 45,759,356.60 × 8,641,426.40
  4. Step 4: Simplify right side
    30,501,070.95x = 395,426,111,898,250.31
  5. Step 5: Solve for x
    x = 395,426,111,898,250.31/30,501,070.95
  6. Step 6: Final answer
    x = 12,964,335.34

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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.