Home / 103,038,206.32-142,196,134.80-56,630,105.20

Finding the Fourth Proportional to 103,038,206.32, 142,196,134.80 and 56,630,105.20

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Solution

The fourth proportional to 103,038,206.32, 142,196,134.80 and 56,630,105.20 is: 78,151,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038,206.32 : 142,196,134.80 = 56,630,105.20 : x
  2. Step 2: Convert to fraction form
    103,038,206.32/142,196,134.80 = 56,630,105.20/x
  3. Step 3: Cross multiply
    103,038,206.32x = 142,196,134.80 × 56,630,105.20
  4. Step 4: Simplify right side
    103,038,206.32x = 8,052,582,072,757,382
  5. Step 5: Solve for x
    x = 8,052,582,072,757,382/103,038,206.32
  6. Step 6: Final answer
    x = 78,151,419.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.