Home / 42,315,320.40-63,472,980.60-28,710,430.80

Finding the Fourth Proportional to 42,315,320.40, 63,472,980.60 and 28,710,430.80

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Solution

The fourth proportional to 42,315,320.40, 63,472,980.60 and 28,710,430.80 is: 43,065,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,315,320.40 : 63,472,980.60 = 28,710,430.80 : x
  2. Step 2: Convert to fraction form
    42,315,320.40/63,472,980.60 = 28,710,430.80/x
  3. Step 3: Cross multiply
    42,315,320.40x = 63,472,980.60 × 28,710,430.80
  4. Step 4: Simplify right side
    42,315,320.40x = 1,822,336,617,186,042.50
  5. Step 5: Solve for x
    x = 1,822,336,617,186,042.50/42,315,320.40
  6. Step 6: Final answer
    x = 43,065,646.20

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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.