Home / 103,720,349.60-155,588,397.60-30,931,449.20

Finding the Fourth Proportional to 103,720,349.60, 155,588,397.60 and 30,931,449.20

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Solution

The fourth proportional to 103,720,349.60, 155,588,397.60 and 30,931,449.20 is: 46,399,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,720,349.60 : 155,588,397.60 = 30,931,449.20 : x
  2. Step 2: Convert to fraction form
    103,720,349.60/155,588,397.60 = 30,931,449.20/x
  3. Step 3: Cross multiply
    103,720,349.60x = 155,588,397.60 × 30,931,449.20
  4. Step 4: Simplify right side
    103,720,349.60x = 4,812,574,616,473,802
  5. Step 5: Solve for x
    x = 4,812,574,616,473,802/103,720,349.60
  6. Step 6: Final answer
    x = 46,399,521.74

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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.