Home / 1,323,089,308.85-1,984,688,754.29-390,412,125.32

Finding the Fourth Proportional to 1,323,089,308.85, 1,984,688,754.29 and 390,412,125.32

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Solution

The fourth proportional to 1,323,089,308.85, 1,984,688,754.29 and 390,412,125.32 is: 585,634,355.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,089,308.85 : 1,984,688,754.29 = 390,412,125.32 : x
  2. Step 2: Convert to fraction form
    1,323,089,308.85/1,984,688,754.29 = 390,412,125.32/x
  3. Step 3: Cross multiply
    1,323,089,308.85x = 1,984,688,754.29 × 390,412,125.32
  4. Step 4: Simplify right side
    1,323,089,308.85x = 774,846,554,649,186,688
  5. Step 5: Solve for x
    x = 774,846,554,649,186,688/1,323,089,308.85
  6. Step 6: Final answer
    x = 585,634,355.50

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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.