Home / 257,926,503.40-386,385,870.30-155,385,946.60

Finding the Fourth Proportional to 257,926,503.40, 386,385,870.30 and 155,385,946.60

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Solution

The fourth proportional to 257,926,503.40, 386,385,870.30 and 155,385,946.60 is: 232,775,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,926,503.40 : 386,385,870.30 = 155,385,946.60 : x
  2. Step 2: Convert to fraction form
    257,926,503.40/386,385,870.30 = 155,385,946.60/x
  3. Step 3: Cross multiply
    257,926,503.40x = 386,385,870.30 × 155,385,946.60
  4. Step 4: Simplify right side
    257,926,503.40x = 60,038,934,209,430,328
  5. Step 5: Solve for x
    x = 60,038,934,209,430,328/257,926,503.40
  6. Step 6: Final answer
    x = 232,775,358.17

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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.