Home / 30,937,397.60-42,697,320.06-18,554,303.50

Finding the Fourth Proportional to 30,937,397.60, 42,697,320.06 and 18,554,303.50

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Solution

The fourth proportional to 30,937,397.60, 42,697,320.06 and 18,554,303.50 is: 25,607,164.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937,397.60 : 42,697,320.06 = 18,554,303.50 : x
  2. Step 2: Convert to fraction form
    30,937,397.60/42,697,320.06 = 18,554,303.50/x
  3. Step 3: Cross multiply
    30,937,397.60x = 42,697,320.06 × 18,554,303.50
  4. Step 4: Simplify right side
    30,937,397.60x = 792,219,035,029,878.25
  5. Step 5: Solve for x
    x = 792,219,035,029,878.25/30,937,397.60
  6. Step 6: Final answer
    x = 25,607,164.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.