Finding the Fourth Proportional to 98,657,918,612.80, 136,148,028,447.40 and 53,547,654,725.09
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Solution
The fourth proportional to 98,657,918,612.80, 136,148,028,447.40 and 53,547,654,725.09 is: 73,895,818,210.15
Step by Step Solution
- Step 1: Write the proportion equation
98,657,918,612.80 : 136,148,028,447.40 = 53,547,654,725.09 : x - Step 2: Convert to fraction form
98,657,918,612.80/136,148,028,447.40 = 53,547,654,725.09/x - Step 3: Cross multiply
98,657,918,612.80x = 136,148,028,447.40 × 53,547,654,725.09 - Step 4: Simplify right side
98,657,918,612.80x = 7,290,407,618,803,242,369,024 - Step 5: Solve for x
x = 7,290,407,618,803,242,369,024/98,657,918,612.80 - Step 6: Final answer
x = 73,895,818,210.15
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1.5x scale
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.