Home / 1,200,607,089,259.60-1,656,837,783,178.60-686,772,883,728.20

Finding the Fourth Proportional to 1,200,607,089,259.60, 1,656,837,783,178.60 and 686,772,883,728.20

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Solution

The fourth proportional to 1,200,607,089,259.60, 1,656,837,783,178.60 and 686,772,883,728.20 is: 947,746,579,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,607,089,259.60 : 1,656,837,783,178.60 = 686,772,883,728.20 : x
  2. Step 2: Convert to fraction form
    1,200,607,089,259.60/1,656,837,783,178.60 = 686,772,883,728.20/x
  3. Step 3: Cross multiply
    1,200,607,089,259.60x = 1,656,837,783,178.60 × 686,772,883,728.20
  4. Step 4: Simplify right side
    1,200,607,089,259.60x = 1,137,871,262,223,405,324,173,312
  5. Step 5: Solve for x
    x = 1,137,871,262,223,405,324,173,312/1,200,607,089,259.60
  6. Step 6: Final answer
    x = 947,746,579,545.12

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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.