Home / 70,477,411.20-105,716,116.80-63,087,100.80

Finding the Fourth Proportional to 70,477,411.20, 105,716,116.80 and 63,087,100.80

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Solution

The fourth proportional to 70,477,411.20, 105,716,116.80 and 63,087,100.80 is: 94,630,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,477,411.20 : 105,716,116.80 = 63,087,100.80 : x
  2. Step 2: Convert to fraction form
    70,477,411.20/105,716,116.80 = 63,087,100.80/x
  3. Step 3: Cross multiply
    70,477,411.20x = 105,716,116.80 × 63,087,100.80
  4. Step 4: Simplify right side
    70,477,411.20x = 6,669,323,316,746,173
  5. Step 5: Solve for x
    x = 6,669,323,316,746,173/70,477,411.20
  6. Step 6: Final answer
    x = 94,630,651.20

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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.