Home / 313,668,307,210.80-470,502,460,816.20-78,116,649,898.80

Finding the Fourth Proportional to 313,668,307,210.80, 470,502,460,816.20 and 78,116,649,898.80

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Solution

The fourth proportional to 313,668,307,210.80, 470,502,460,816.20 and 78,116,649,898.80 is: 117,174,974,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,668,307,210.80 : 470,502,460,816.20 = 78,116,649,898.80 : x
  2. Step 2: Convert to fraction form
    313,668,307,210.80/470,502,460,816.20 = 78,116,649,898.80/x
  3. Step 3: Cross multiply
    313,668,307,210.80x = 470,502,460,816.20 × 78,116,649,898.80
  4. Step 4: Simplify right side
    313,668,307,210.80x = 36,754,076,008,102,963,970,048
  5. Step 5: Solve for x
    x = 36,754,076,008,102,963,970,048/313,668,307,210.80
  6. Step 6: Final answer
    x = 117,174,974,848.20

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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.