Home / 403,287,639.60-604,931,459.40-130,685,962.80

Finding the Fourth Proportional to 403,287,639.60, 604,931,459.40 and 130,685,962.80

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Solution

The fourth proportional to 403,287,639.60, 604,931,459.40 and 130,685,962.80 is: 196,028,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,287,639.60 : 604,931,459.40 = 130,685,962.80 : x
  2. Step 2: Convert to fraction form
    403,287,639.60/604,931,459.40 = 130,685,962.80/x
  3. Step 3: Cross multiply
    403,287,639.60x = 604,931,459.40 × 130,685,962.80
  4. Step 4: Simplify right side
    403,287,639.60x = 79,056,050,199,698,112
  5. Step 5: Solve for x
    x = 79,056,050,199,698,112/403,287,639.60
  6. Step 6: Final answer
    x = 196,028,944.20

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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.