Home / 61,205,875.60-91,808,813.40-60,639,005.20

Finding the Fourth Proportional to 61,205,875.60, 91,808,813.40 and 60,639,005.20

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Solution

The fourth proportional to 61,205,875.60, 91,808,813.40 and 60,639,005.20 is: 90,958,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,205,875.60 : 91,808,813.40 = 60,639,005.20 : x
  2. Step 2: Convert to fraction form
    61,205,875.60/91,808,813.40 = 60,639,005.20/x
  3. Step 3: Cross multiply
    61,205,875.60x = 91,808,813.40 × 60,639,005.20
  4. Step 4: Simplify right side
    61,205,875.60x = 5,567,195,113,168,430
  5. Step 5: Solve for x
    x = 5,567,195,113,168,430/61,205,875.60
  6. Step 6: Final answer
    x = 90,958,507.80

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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.