Home / 99,778,946.40-149,556,445.20-56,668,802.40

Finding the Fourth Proportional to 99,778,946.40, 149,556,445.20 and 56,668,802.40

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Solution

The fourth proportional to 99,778,946.40, 149,556,445.20 and 56,668,802.40 is: 84,939,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778,946.40 : 149,556,445.20 = 56,668,802.40 : x
  2. Step 2: Convert to fraction form
    99,778,946.40/149,556,445.20 = 56,668,802.40/x
  3. Step 3: Cross multiply
    99,778,946.40x = 149,556,445.20 × 56,668,802.40
  4. Step 4: Simplify right side
    99,778,946.40x = 8,475,184,640,685,228
  5. Step 5: Solve for x
    x = 8,475,184,640,685,228/99,778,946.40
  6. Step 6: Final answer
    x = 84,939,608.47

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1.5x scale

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.