Home / 100,417,085.87-138,567,973.50-56,355,575

Finding the Fourth Proportional to 100,417,085.87, 138,567,973.50 and 56,355,575

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Solution

The fourth proportional to 100,417,085.87, 138,567,973.50 and 56,355,575 is: 77,766,425.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,417,085.87 : 138,567,973.50 = 56,355,575 : x
  2. Step 2: Convert to fraction form
    100,417,085.87/138,567,973.50 = 56,355,575/x
  3. Step 3: Cross multiply
    100,417,085.87x = 138,567,973.50 × 56,355,575
  4. Step 4: Simplify right side
    100,417,085.87x = 7,809,077,823,177,262
  5. Step 5: Solve for x
    x = 7,809,077,823,177,262/100,417,085.87
  6. Step 6: Final answer
    x = 77,766,425.46

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1.5x scale

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.