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Finding the Fourth Proportional to 302,516,459.80, 453,774,689.70 and 87,127,480.60

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Solution

The fourth proportional to 302,516,459.80, 453,774,689.70 and 87,127,480.60 is: 130,691,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,516,459.80 : 453,774,689.70 = 87,127,480.60 : x
  2. Step 2: Convert to fraction form
    302,516,459.80/453,774,689.70 = 87,127,480.60/x
  3. Step 3: Cross multiply
    302,516,459.80x = 453,774,689.70 × 87,127,480.60
  4. Step 4: Simplify right side
    302,516,459.80x = 39,536,245,473,607,768
  5. Step 5: Solve for x
    x = 39,536,245,473,607,768/302,516,459.80
  6. Step 6: Final answer
    x = 130,691,220.90

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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.