Home / 989,600,298.30-1,484,400,447.45-407,140,962.30

Finding the Fourth Proportional to 989,600,298.30, 1,484,400,447.45 and 407,140,962.30

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Solution

The fourth proportional to 989,600,298.30, 1,484,400,447.45 and 407,140,962.30 is: 610,711,443.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,600,298.30 : 1,484,400,447.45 = 407,140,962.30 : x
  2. Step 2: Convert to fraction form
    989,600,298.30/1,484,400,447.45 = 407,140,962.30/x
  3. Step 3: Cross multiply
    989,600,298.30x = 1,484,400,447.45 × 407,140,962.30
  4. Step 4: Simplify right side
    989,600,298.30x = 604,360,226,613,343,616
  5. Step 5: Solve for x
    x = 604,360,226,613,343,616/989,600,298.30
  6. Step 6: Final answer
    x = 610,711,443.45

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Double scale
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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.