Finding the Fourth Proportional to 1,423,964,032.78, 2,136,559,862.12 and 768,784,973.98
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Solution
The fourth proportional to 1,423,964,032.78, 2,136,559,862.12 and 768,784,973.98 is: 1,153,508,852.89
Step by Step Solution
- Step 1: Write the proportion equation
1,423,964,032.78 : 2,136,559,862.12 = 768,784,973.98 : x - Step 2: Convert to fraction form
1,423,964,032.78/2,136,559,862.12 = 768,784,973.98/x - Step 3: Cross multiply
1,423,964,032.78x = 2,136,559,862.12 × 768,784,973.98 - Step 4: Simplify right side
1,423,964,032.78x = 1,642,555,118,006,636,544 - Step 5: Solve for x
x = 1,642,555,118,006,636,544/1,423,964,032.78 - Step 6: Final answer
x = 1,153,508,852.89
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.