Finding the Fourth Proportional to 839,809,701.60, 1,259,714,552.40 and 778,587,698.40
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Solution
The fourth proportional to 839,809,701.60, 1,259,714,552.40 and 778,587,698.40 is: 1,167,881,547.60
Step by Step Solution
- Step 1: Write the proportion equation
839,809,701.60 : 1,259,714,552.40 = 778,587,698.40 : x - Step 2: Convert to fraction form
839,809,701.60/1,259,714,552.40 = 778,587,698.40/x - Step 3: Cross multiply
839,809,701.60x = 1,259,714,552.40 × 778,587,698.40 - Step 4: Simplify right side
839,809,701.60x = 980,798,253,994,102,272 - Step 5: Solve for x
x = 980,798,253,994,102,272/839,809,701.60 - Step 6: Final answer
x = 1,167,881,547.60
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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.