Home / 1,638,363,977.40-2,457,864,830.70-473,870,458.20

Finding the Fourth Proportional to 1,638,363,977.40, 2,457,864,830.70 and 473,870,458.20

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Solution

The fourth proportional to 1,638,363,977.40, 2,457,864,830.70 and 473,870,458.20 is: 710,897,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,363,977.40 : 2,457,864,830.70 = 473,870,458.20 : x
  2. Step 2: Convert to fraction form
    1,638,363,977.40/2,457,864,830.70 = 473,870,458.20/x
  3. Step 3: Cross multiply
    1,638,363,977.40x = 2,457,864,830.70 × 473,870,458.20
  4. Step 4: Simplify right side
    1,638,363,977.40x = 1,164,709,533,517,474,304
  5. Step 5: Solve for x
    x = 1,164,709,533,517,474,304/1,638,363,977.40
  6. Step 6: Final answer
    x = 710,897,913.76

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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.