Home / 415,807,320.40-623,710,980.60-396,675,444.40

Finding the Fourth Proportional to 415,807,320.40, 623,710,980.60 and 396,675,444.40

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Solution

The fourth proportional to 415,807,320.40, 623,710,980.60 and 396,675,444.40 is: 595,013,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,807,320.40 : 623,710,980.60 = 396,675,444.40 : x
  2. Step 2: Convert to fraction form
    415,807,320.40/623,710,980.60 = 396,675,444.40/x
  3. Step 3: Cross multiply
    415,807,320.40x = 623,710,980.60 × 396,675,444.40
  4. Step 4: Simplify right side
    415,807,320.40x = 247,410,830,406,664,768
  5. Step 5: Solve for x
    x = 247,410,830,406,664,768/415,807,320.40
  6. Step 6: Final answer
    x = 595,013,166.60

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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.